Timeline

A 2021 Reddit bug that printed internal removal reasons — published in a 2026 teardown — revealed the machinery behind Reddit's silent removals: an internal system called 'spamurai,' Google's Perspective API scoring private messages, TLS and browser fingerprinting, and ISP-level profiling of users.

A leaked January 2026 Border Patrol intelligence bulletin showed Homeland Security field agents monitoring law-abiding Reddit users critical of immigration enforcement — profiling one user's protest call, and their posts about football, movies, and Stephen King novels.

As Reddit became a key source for AI chatbots and search tools, researchers and reporters documented a booming industry seeding Reddit with AI-generated and planted posts so that brands' products would be regurgitated by AI assistants.

In December 2025 a federal judge denied a request by Royel Otis guitarist Leroy Bressington (Royel Maddell) to compel Reddit to identify users who had posted serious allegations about him, calling the application overreaching.

A federal grand jury in the Northern District of Georgia indicted Anthony Belford in June 2026 on a cyberstalking charge, alleging he created fake accounts — including a Reddit account — impersonating a former classmate to distribute AI-generated nude images and false claims; the case is pending and he is presumed innocent.

Cybersecurity firm Cycurion and its CEO used court-ordered subpoenas to Reddit and Stocktwits to identify an anonymous poster, then amended their defamation suit in April 2026 to name him; the claims remain unproven.

In 2026 the federal government sought to unmask an anonymous Reddit user who criticized ICE — first via an administrative summons citing the 1930 Tariff Act, then via a Washington, D.C. grand-jury subpoena — prompting motions to quash on First Amendment grounds.

The Netherlands' data-protection authority opened a GDPR investigation into Reddit's licensing of user content to AI developers; after Reddit allegedly stopped cooperating, it lost a court challenge in The Hague in early 2026 over the regulator's handling of privileged material.

In June 2026 security researchers documented a Reddit advertising campaign impersonating the BBC, Financial Times, and The Guardian to funnel users into fake AI-powered crypto 'investment' platforms promising outsized returns.

The U.S. House Judiciary Committee subpoenaed Reddit's CEO for internal communications with the European Commission and EU member states about content-moderation compliance, as part of a congressional investigation into alleged 'foreign censorship' of American speech.

Alan Bill, a Slovakian national, admitted helping run the Kingdom Market darknet marketplace and creating its promotional forum pages on sites including Reddit and Dread; charged in 2023, he pleaded guilty in 2026 and was sentenced to 200 months in prison.

After an unhoused man was killed in Louisville in late 2025, detectives traced a Reddit post warning of a 'possible serial killer' — published before the body was found — by IP address to Michael Hristov; he was indicted in May 2026 but was killed by police during the warrant service before any trial.

Post-IPO, Reddit faced mounting evidence of AI-generated content and coordinated astroturfing, including a 2025 study estimating about 15 percent of Reddit posts were likely AI-generated and a June 2026 exposé showing companies were flooding subreddits with AI-assisted posts to manipulate ChatGPT and Google AI search answers.

When Meta quietly launched a standalone discussion app called Forum in May 2026, built on Facebook Groups and aimed squarely at Reddit's niche, Reddit's stock fell about 6% as analysts warned of a serious new competitive threat to its community-forum business.

Reddit's stock dropped sharply after the company was passed over for inclusion in the S&P 500 despite widespread market speculation that it would be added, denying it an expected wave of index-fund buying and underscoring the volatility around the post-IPO name.

In June 2026 Reddit announced that old.reddit.com — the legacy interface long favored by moderators and veteran users — would require a login within a month, citing 'abusive scraping and automated traffic,' while declining to promise the interface would exist forever.

Reddit retired its long-standing unfiltered r/all feed, removing it from mobile apps and desktop on April 2, 2026, after an initial test in December 2025, as part of a shift toward algorithmic personalized feeds that drew backlash from longtime users.

Facing a flood of AI-generated accounts, Reddit announced it would label legitimate bots and challenge suspected automated accounts with human-verification checks — a policy that pits anonymity against authenticity and worried users about biometric or ID demands.

Reddit closed 2025 with record revenue, its first full year of strong profit, and a $1 billion buyback — financial milestones that intensified the contrast between the company's wealth and its reliance on unpaid moderators and licensed user content.

As Reddit marketed itself as the human refuge from AI 'slop,' a large-scale academic study found thousands of subreddits writing their own rules against AI-generated content — the number more than doubling in a year — while researchers warned that the platform's 'credibility can look like consensus' and that its volunteer-moderated communities remain vulnerable to brigading and astroturfing.

In early 2026 Reddit's stock fell sharply after analysts warned that AI-generated search answers — by reducing the click-throughs that send logged-out visitors to Reddit — could undermine the traffic its advertising business depends on.

A January 2026 Reddit post by a supposed food-delivery 'whistleblower' — complete with a fake 18-page document and AI-generated employee badge — drew tens of thousands of upvotes and tens of millions of views before being exposed as AI-fabricated.

In May 2026 Reddit began deploying an unskippable full-screen overlay on its mobile website telling users to 'Get the app to keep using Reddit,' with no close or continue-in-browser option — a dark-pattern escalation of years of nag screens that drew immediate backlash.

On 24 February 2026 the UK Information Commissioner's Office fined Reddit £14.47 million, finding it had processed children's data without effective age assurance and without a data-protection impact assessment for years.

Moderators of r/Bitcoin permanently banned 'Bitcoin Mechanic', a prominent Bitcoin Knots developer, for a two-sentence post noting on-chain signaling around the contentious BIP-110 — reviving long-running accusations that the subreddit censors protocol dissent.

Reddit removed the top moderator of r/LiveStreamFail after he used the 4-million-member subreddit to promote 'Million Dollar Fan', a reality show advertising a suspiciously large prize that collapsed amid scam allegations — reviving fears that moderators sell community access.

Reddit's AI 'Answers' feature surfaced dangerous medical misinformation in health subreddits — including pointing pain-management questions toward an illegal narcotic and an unregulated herbal substance — and moderators reported they could not turn it off.

Across early 2025, dozens of large subreddits banned links to X after Elon Musk's inauguration-day gesture, and Reddit's subsequent enforcement actions against anti-Musk and anti-DOGE communities fueled accusations that the company was selectively censoring content under political pressure.

In the December 2025 investigation into deadly shootings at Brown University and an MIT professor's home, a bystander's Reddit post about a suspicious car gave police the break that identified the suspect.

Peer-reviewed and preprint research using archives of Reddit's banned incel communities documented escalating extremist language over time and links between misogynist forums and broader far-right radicalization.

Through 2024 and 2025 Reddit expanded 'conversation' ad placements deeper into comment sections and rolled out AI 'Conversation Summary' ad add-ons, intensifying user unease about commercializing the discussion threads that define the platform.

From 10 December 2025 Australia required Reddit and nine other platforms to take reasonable steps to prevent under-16s from holding accounts, backed by penalties up to A$49.5 million and overseen by the eSafety Commissioner.

On 26 June 2025 Brazil's Supreme Federal Court held part of the Marco Civil da Internet unconstitutional, replacing a court-order-only liability shield with a fault-based regime that sweeps in platforms such as Reddit.

Reddit published its first transparency report in January 2015, disclosing just 55 government requests for user data; a decade later its biannual reports document billions of posts and the removal of more than 150 million pieces of content every six months — a public record that tracks both the platform's explosive growth and the escalating government demands on it.

The U.S. House Oversight Committee invited Reddit's CEO, alongside the leaders of Discord, Twitch and Valve, to testify on the radicalization of online-forum users following the killing of Charlie Kirk; the voluntary appearance shifted to transcribed interviews amid a government shutdown.

A third film-studio unmasking attempt, tied to a copyright suit against the ISP Frontier, was rejected by the district court in 2024 and appealed to the Ninth Circuit; the appeal was ultimately dismissed as moot after the underlying case settled, leaving no appellate ruling.

Game-marketing agency Trap Plan publicly boasted in a case study that it had seeded roughly 100 fake 'organic-style' posts and comments across major gaming subreddits to promote War Robots: Frontiers — then deleted the post once r/Games users noticed.

The owners of a Palmerston North hydroponics business brought proceedings against Reddit under New Zealand's Harmful Digital Communications Act, seeking removal of r/NZTrees posts and disclosure of the anonymous posters' identities.

Through 2025 the UK regulator Ofcom opened dozens of Online Safety Act investigations and issued its first fines, establishing an enforcement regime that age-gated platforms such as Reddit must comply with or face penalties up to 10% of global turnover.

The Ottawa-Carleton District School Board asked an Ontario court to compel Reddit to identify an anonymous user it accused of posting dozens of false and defamatory comments about a school and staff; Reddit opposed the disclosure.

After Reddit's Q4 2024 earnings on February 12, 2025, the stock plunged roughly 13 to 15 percent when the company disclosed that a Google search algorithm change, including AI Overviews, caused volatility in user growth and a daily-active-user miss despite strong revenue.

In October 2025, Reddit co-founder Alexis Ohanian publicly endorsed the 'dead internet' framing, saying much of the web is now botted, 'quasi-AI,' and 'LinkedIn slop' — a striking concession from a founder of a platform central to those concerns.

Reddit was knocked offline by two major 2025 internet-infrastructure failures: a roughly 15-hour outage on October 20, 2025 caused by an AWS US-East-1 failure, and the November 18, 2025 Cloudflare outage that triggered widespread errors across the web.

Anonymous moderators of a subreddit critical of YouTuber Ethan Klein fought his legal effort to compel Reddit and Discord to reveal their identities, arguing that unmasking would expose them to harassment, extortion, and threats of violence.

In August 2025 Reddit moved to block the Internet Archive's Wayback Machine from archiving anything beyond its homepage, citing AI scrapers exploiting the archive — a step critics warned damages the public record to protect Reddit's data-licensing revenue.

Reddit sued Anthropic in California state court, alleging the AI company scraped Reddit content without a license to train its Claude models despite publicly claiming it had blocked its bots, with crawlers said to have accessed Reddit more than 100,000 times.

Reddit sued Perplexity AI and three data-scraping intermediaries in federal court, alleging an industrial-scale scheme to harvest Reddit content from Google search results to feed AI products in violation of the DMCA.

In September 2025 Reddit joined other publishers backing 'Really Simple Licensing', a standard meant to make AI crawlers pay for content — extending Reddit's effort to monetize user-generated posts as AI training data, and its enforcement war against unpaid scrapers.

After a deadly bombing outside a California fertility clinic whose perpetrator had referenced fringe anti-natalist communities, Reddit banned r/Efilism under its self-harm policies, reviving questions about when the platform acts against extreme ideologies.

In December 2025 Reddit filed a constitutional challenge in the High Court of Australia, arguing the country's under-16 social-media ban and age-verification mandate burden the implied freedom of political communication.

In June 2025 Reddit sued Anthropic, alleging it scraped Reddit content over 100,000 times to train Claude without a licence; in 2026 a court remanded the state-law claims back to California state court.

In October 2025 Reddit sued Perplexity AI alongside scraping companies Oxylabs, AWMProxy, and SerpApi, alleging an 'industrial-scale' operation to harvest Reddit content from Google results and sell or use it.

Isaac Sissel created Reddit accounts and posted, days before the 2024 election, that he would carry out an attack; he pleaded guilty to transmitting interstate threats and was sentenced to 30 months in 2025.

Through 2025 Reddit's volunteer moderators warned that a flood of AI-generated 'slop' and rage-bait was overwhelming communities and degrading content quality, even as the company posted record revenue partly built on licensing that same user content to AI firms.

At Cannes Lions in June 2025, Reddit launched AI advertising tools under the 'Reddit Community Intelligence' brand, including features that surface users' own posts beneath brand ads and mine community conversations for marketers, reviving debate over monetizing user-generated content.

On 25 July 2025 Reddit began requiring UK users to verify their age with government ID or a face scan to view adult and other 'mature' content, triggering a backlash over privacy and over-blocking of support communities.

After UnitedHealthcare CEO Brian Thompson was shot dead in December 2024, Reddit suspended a moderator, banned multiple Mangione fan subreddits, and rolled out warnings to users who upvoted 'violent content' — drawing accusations of inconsistent, heavy-handed moderation.

Reddit's own transparency reports document persistent spam and inauthentic-account activity. The problem moved from anonymous spammers to credentialed academics in 2025, when University of Zurich researchers secretly ran AI bots posing as real people in r/changemyview to test machine persuasion without users' consent.

Because Reddit ads appear inside community conversations rather than a curated feed, advertisers have long worried about placement next to misinformation, hate, or explicit content — driving a 2024-2025 scramble for third-party brand-safety controls.

Across 2025, CEO Steve Huffman repeatedly exercised options and sold Reddit stock under a pre-arranged plan, converting the equity that had drawn IPO-era criticism into millions in realized gains.

University of Michigan researchers analyzing over 600 million Reddit comments found that users whose political views differed from a subreddit's moderators were significantly more likely to have their comments removed — quantifying long-standing claims that moderation entrenches echo chambers.

Investors filed a securities class action alleging Reddit misled the market about how Google's AI search features were eroding its user traffic, after the stock fell sharply in May 2025; the case is pending in the Northern District of California.

An over-eager automated system meant to remove unmoderated adult communities mistakenly banned more than 90 actively moderated NSFW subreddits, fueling fears that the 'unmoderated' label could become a blunt instrument for sweeping removals.

Reddit's 2022 block overhaul, meant to curb harassment, had a side effect users later weaponized: once blocked, a person could no longer view, edit or delete their own comments in that thread — letting strangers silence others and fracture discussions.

In February 2025, Reddit admins temporarily banned the large subreddit r/WhitePeopleTwitter for 72 hours, citing a prevalence of violent content, shortly after Elon Musk publicly claimed the subreddit had broken the law over posts targeting his DOGE staffers.

The January 31, 2024 Senate Judiciary child-safety hearing and the KOSA/STOP CSAM legislative push intensified bipartisan momentum to roll back Section 230 — the liability shield Reddit calls existential — while Stanford research highlighted weak, uneven CSAM reporting across the platform ecosystem.

A California class action alleged Reddit misclassified roughly 120 workers as exempt and denied them overtime and breaks; Reddit agreed to a $525,000 settlement, with content moderators forming a subclass.

A fabricated sexually explicit video of podcast host Bobbi Althoff that went viral on X in February 2024 also spread to Reddit, in an incident driven partly by engagement-farming accounts promising 'leaks.'

Canada's Bill C-63, the Online Harms Act introduced in February 2024, proposed sweeping duties on social-media operators — covering platforms such as Reddit — before lapsing when Parliament was dissolved.

Around Taiwan's January 2024 election, Google's threat researchers reported that the pro-Beijing Dragonbridge network flooded platforms — Reddit among them — with pro-PRC and anti-US narratives, including AI-generated material.

A former Reddit content moderator, Maya Amerson, sued the company in San Francisco Superior Court alleging that years of reviewing extreme violence and abuse material caused her PTSD and that management ignored her requests to be reassigned, in a case that became part of a wave of moderator-harm litigation against Big Tech.

Reddit's 'delete' is a soft delete: removed posts and comments vanish from public view but persist in Reddit's systems, in third-party archives that captured them at posting time, and in users' own GDPR data exports — a gap between user expectation and reality that became a documented privacy concern.

Reddit was one of nine companies ordered by the FTC to disclose its data practices for a sweeping 6(b) study; the 2024 staff report found pervasive surveillance of users and weak protections for children and teens across the industry.

As Reddit signed AI data-licensing deals worth over $200 million ahead of its March 2024 IPO, the FTC opened a non-public inquiry into Reddit's sale and licensing of user-generated content to train AI models, amid a broader backlash over monetizing users' posts without compensation or meaningful consent.

Reddit's storytelling subreddits — r/AmItheAsshole and r/nosleep among them — have a documented problem of fabricated and increasingly AI-generated posts presented as real, with one analysis estimating AI-generated content reached roughly 41% of sampled r/nosleep posts in 2024.

A self-described troll who wrote under the handle 'CartoonsHateHer' admitted authoring numerous fabricated posts that went viral on r/AmItheAsshole and similar communities, exposing how much of Reddit's most-shared 'real life' drama is invented.

A recurring Reddit-specific scam sees criminals impersonate moderators or the 'admin team' via private messages and chat, sending fake 'verification' or 'suspension appeal' links to phishing pages that harvest credentials and 2FA codes for account takeover — and sometimes payment.

Reddit joined Yelp, Glassdoor, Indeed, Tripadvisor and PubPeer in a New York appeal supporting an anonymous blogger; the Appellate Division quashed subpoenas seeking the blogger's identity and adopted the protective Dendrite standard for unmasking anonymous speakers.

Weeks after Reddit's $60M/year data-licensing deal with Google, Google's new AI Overviews feature repackaged satirical and dangerous Reddit posts — telling users to glue cheese to pizza and eat rocks — as authoritative search answers.

On a 2024 earnings call, CEO Steve Huffman suggested Reddit might place some new subreddits behind paywalls, prompting moderators to object that they would effectively be charged for — or asked to produce — content they create for free.

After Robinhood halted buying of GameStop and other Reddit-driven meme stocks on Jan. 28, 2021, dozens of retail-investor suits were consolidated into an MDL; the antitrust theory was ultimately dismissed and affirmed on appeal in 2024.

Volunteer moderators of r/law and r/SCOTUS, plus Reddit itself, filed amicus briefs urging the Supreme Court to strike down Texas and Florida social-media laws; the Court unanimously vacated the lower rulings and strongly affirmed platforms' editorial discretion.

When Keith Gill resurfaced in 2024, an investor filed a securities-fraud class action alleging a GameStop 'pump-and-dump' tied to his Reddit/X posts; he voluntarily dismissed it three days later, without prejudice.

By July 2024 Reddit's robots.txt changes had blocked Bing, DuckDuckGo, Mojeek, Qwant and other engines from indexing recent Reddit content, while Google retained access under a reported $60 million annual AI-data deal — making Google effectively the only search engine able to surface fresh Reddit results.

The EU's Digital Services Act imposed new transparency, point-of-contact, and content-moderation obligations on Reddit, which self-reports tens of millions of EU users but has not been formally designated a Very Large Online Platform.

In October 2024 Reddit changed its rules so moderators could no longer switch a community to private or NSFW without first getting administrator approval — a move the company tied to user expectations but which critics saw as a direct curb on the protest tactic that powered the 2023 blackouts.

In February 2024, days before its IPO, Reddit signed a content-licensing deal with Google reported at roughly $60 million per year, giving Google access via Reddit's Data API to train AI models on years of user content. The deal drew user unease over consent and triggered an FTC inquiry.

When Reddit went public on the NYSE (RDDT) in March 2024, it offered a slice of IPO shares to top moderators and users via a Directed Share Program. Many community members rejected the gesture as cynical, noting the volunteer moderators who built Reddit's value still received no compensation while CEO Steve Huffman earned $193 million in 2023.

In May 2024 Reddit licensed its user-generated content to OpenAI in a deal reportedly worth tens of millions annually, raising conflict-of-interest concerns because OpenAI CEO Sam Altman was Reddit's third-largest shareholder.

Reddit went public with a dual-class share structure that hands insiders ten votes per share, leaving CEO Steve Huffman and early backer Advance Publications with outsized control while public investors hold the economic risk.

A scientist obtained a sweeping restraining order against a Reddit moderator who criticised her over the Lucy Letby case, but a California court quashed it for lack of jurisdiction and called the anti-SLAPP arguments compelling.

Former UFC champion Ronda Rousey's August 2024 AMA promoting a graphic novel was overrun by questions about a 2013 Sandy Hook conspiracy video she had reposted; days later she issued a lengthy apology.

During Reddit's multi-year IPO registration, SEC staff issued a series of comment letters scrutinizing its accounting and, notably, how it counts daily active users while stripping out bots and crawlers — a regulatory review, not an enforcement action.

Reddit disclosed in 2024 that it had signed data-licensing deals worth hundreds of millions to let AI firms train on user posts — content created by users who were neither asked for consent nor offered any share of the proceeds.

Reddit's IPO paperwork revealed CEO Steve Huffman received roughly $193 million in 2023 compensation, drawing fierce criticism from the unpaid volunteer moderators whose labour underpins the platform.

A 2024 study offered the most rigorous measurement yet of Reddit's June 2020 'Great Ban': while most affected users left or became less toxic, roughly 5% reacted by sharply increasing their toxicity — quantifying both the efficacy and the radicalizing unintended consequences of mass deplatforming.

Sexually explicit AI-generated images of Taylor Swift that went viral on X in January 2024 also migrated to Reddit, prompting fresh scrutiny of how the platform handles fast-moving non-consensual deepfake content.

Texas Attorney General Ken Paxton opened an investigation into Reddit and more than a dozen other companies over compliance with the state's SCOPE Act and data-privacy law, focusing on the collection and targeting of minors' data.

A 404 Media investigation documented a commercial industry built to covertly promote products on Reddit — buying aged high-karma accounts, deploying bots like 'ReplyGuy' to plant product mentions, and exploiting Reddit's Google ranking through 'parasite SEO.'

After scrapping its long-running coins-and-awards system in 2023 and replacing it with a widely mocked 'Golden Upvote,' Reddit reversed course in May 2024 with a relaunched awards system built around paid 'gold' and creator payouts — an about-face critics read as an admission the original cut had failed.

Reddit let users and moderators buy IPO shares with no lock-up, free to sell on day one, while warning investors that its own r/WallStreetBets community could whip the stock into meme-stock volatility — an unusually self-aware set of risk disclosures.

A 2024 feud between YouTuber Ethan Klein and the pop-culture subreddit r/Fauxmoi escalated into harassment and doxxing threats against its moderators, with at least two forced to delete their accounts.

After splitting from r/GME in 2021, r/Superstonk became the center of a self-reinforcing belief system organized around the 'Mother of All Short Squeezes' (MOASS) and a mass share-registration campaign, with skeptics dismissed as paid 'shills'.

As US sports betting legalization spread, researchers examined whether Reddit communities like r/sportsbook normalize risky gambling — and tracked a measurable rise in problem-gambling support activity on r/problemgambling.

Researchers documented a surge in advertising for AI 'nudify' apps — services that fabricate non-consensual nude images from ordinary photos — across social platforms including Reddit, which said it had banned several domains in response.

In August 2023 Meta disclosed the largest covert influence operation it had ever found — the China-origin 'Spamouflage' network — and named Reddit among more than 50 platforms where operators seeded pro-Beijing content.

Christopher Au-Young of California ran a campaign of racist harassment against multiple Black victims, posting threatening videos to platforms including Reddit; he pleaded guilty to interstate stalking and cyberstalking in July 2023 and was sentenced to five years in federal prison in November 2023.

Jonathan Zheng, an expelled University of Illinois student, was arrested in Florida in May 2023 after posting on the UIUC subreddit that he would shoot up the school; a Reddit user reported it, leading police to trace and arrest him.

As FBI warnings described a surge in financial sextortion of teenagers — much of it driven by Nigeria-based 'Yahoo Boys' — Reddit became both a place victims sought help and one of the mainstream platforms implicated in the wider abuse ecosystem.

In a parallel case tied to a copyright suit against the ISP Grande Communications, film producers again sought to unmask six Reddit users; the Northern District of California again denied the motion to compel on First Amendment grounds.

Film-copyright holders subpoenaed Reddit to unmask six users who had commented about piracy, hoping to use the posts as evidence in a suit against the ISP RCN; a federal magistrate judge quashed the subpoena on First Amendment grounds.

In a series of copyright cases, movie distributors subpoenaed Reddit to unmask anonymous users who had commented about piracy, but federal magistrate judges in the Northern District of California repeatedly quashed the subpoenas, holding the First Amendment right to anonymous speech outweighed the studios' need.

As 'pig-butchering' romance-investment scams drained billions from victims worldwide, Reddit's r/Scams and related communities became a major venue where victims sought help — even as scammers also surfaced on the platform.

On February 5, 2023, a targeted phishing attack stole an employee's credentials and 2FA token, giving intruders access to internal documents, dashboards, source code, and employee and advertiser data. In June 2023 the BlackCat/ALPHV ransomware group publicly claimed it had taken roughly 80GB of data and demanded a $4.5 million ransom.

In 2023 Reddit terminated Pushshift's bulk data access as part of its paid-API crackdown, breaking the historical archive that powered research and the tools (Reveddit, Removeddit, Unddit) used to view deleted or removed content — reshaping who controls retained Reddit data.

Reddit's abrupt October 2023 shutdown of its blockchain 'Community Points' rewards crashed user-held tokens — MOON down ~85%, BRICK ~70%, DONUT ~60% — with some holders calling it a rug pull.

In July 2023, weeks after the API blackout, Reddit abruptly killed its long-standing Coins and 50-plus Awards system with no replacement ready, drawing user anger over lost purchases and yet another unilateral product change.

Launched in April 2021 amid the Clubhouse-driven social-audio boom, Reddit Talk let communities host live audio rooms — then Reddit announced in March 2023 it would shut the feature down, blaming a vendor exit and shifting resources to video and search.

Reddit's 2023 API price hikes threatened to wipe out the third-party apps that blind and visually impaired users relied on for accessible access, forcing the company into a hastily announced and criticized exception for 'accessibility-focused' apps.

After the initial June 2023 API blackout failed to move Reddit, major subreddits including r/pics, r/aww and r/gifs held polls and reopened under a malicious-compliance rule allowing only images of comedian John Oliver. Oliver himself endorsed the stunt and supplied photos.

After the June 2023 API blackout, Reddit invoked its Moderator Code of Conduct to threaten and then remove the mod teams of subreddits that stayed dark, while CEO Steve Huffman dismissed moderators as 'landed gentry.' When protesters marked communities NSFW to strip out ads, Reddit issued final warnings and forced them back to SFW.

Climate-misinformation researchers who traced ExxonMobil-linked disinformation across social media included Reddit's climate communities (r/climate, r/climatechange) in their analysis, situating the platform within a documented, industry-funded effort to muddy public understanding of climate science.

A Moscow court fined Reddit two million rubles in August 2023 — its first such penalty in Russia — for failing to remove content the authorities deemed illegal, including material about the war in Ukraine.

Reddit's decision to charge punitive prices for API access killed popular third-party apps like Apollo and triggered the largest protest in the site's history — followed by the removal of protesting moderators.

Reddit's July 2023 r/place reboot arrived weeks after the API-pricing blackout, and protesting users hijacked the canvas to spell out anti-CEO slogans before coordinating to paint the whole board white.

After a Twitch broadcaster was caught having paid for non-consensual deepfake pornography of fellow female streamers, the clip and the underlying site circulated through Reddit's r/LivestreamFail, drawing fresh attention to how the platform amplifies such material.

After Reddit fired the admin who coordinated celebrity AMAs in 2015, r/IAmA slid into low-effort, PR-managed 'drive-by' promotional Q&As, and the format that once defined Reddit's appeal was widely declared a shadow of its former self.

Moderators of the 6.9-million-member r/CryptoCurrency dumped roughly $150,000 worth of the community's MOON token minutes before Reddit publicly announced it was shutting down the program that gave the token value — and were removed for what users called blatant insider trading.

A 2022 BBC Panorama investigation revealed a Reddit subreddit with more than 20,000 members dedicated to trading leaked and non-consensual explicit images of South Asian women, some of whom were blackmailed and harassed.

Andrew Bradshaw, the newly elected mayor of Cambridge, Maryland, posted intimate images of an ex-partner to Reddit with degrading captions; he was charged with 50 counts under Maryland's revenge-porn law in November 2021 and pleaded guilty to five counts in April 2022.

Section 230 immunizes Reddit, its moderators, and its users from liability for posted content, leaving people defamed on the platform with few options short of costly litigation to unmask anonymous posters.

Around the Depp-Heard defamation trial, an analytics firm documented coordinated, partly inauthentic harassment of Amber Heard and her supporters; pro-Depp and anti-Heard communities, including dedicated subreddits, were part of a broader cross-platform fandom ecosystem.

Six plaintiffs sued Reddit over child sexual abuse material posted in subreddits, arguing the FOSTA exception stripped Section 230 immunity; in 2022 the Ninth Circuit affirmed dismissal, reading the carve-out narrowly.

Reddit acquired the short-video app Dubsmash in December 2020, harvested its creation tools to build a TikTok-style swipeable video feed, then shut Dubsmash down in early 2022 — an acqui-hire-and-discard that left the standalone app's community stranded.

Security researchers documented that the handwritten verification selfies users post to NSFW subreddits such as r/GoneWild were being scraped and manipulated by fraudsters to defeat identity-verification (KYC) systems and build synthetic identities.

Reddit runs on unpaid volunteer moderators whose exposure to harmful content and harassment causes documented psychological harm — a problem underscored by professional-moderator PTSD lawsuits across the industry.

A security researcher earned a $10,000 Reddit bug bounty for an OAuth flaw in Reddit's 'Sign in with Apple' flow that let an attacker hijack the account of any user who used Apple sign-in with a single click, by abusing the OAuth state parameter to steal the victim's authorization code.

On 23 March 2022 Reddit banned the India-focused r/Chodi, a community of over 90,000 members, for promoting hate against Muslims, following a TIME investigation into hate speech on the platform.

In March 2022 Reddit permanently banned r/ChongLangTV, a Chinese-diaspora community of more than 53,000 members, for doxxing — a removal that critics framed as an instance of Chinese 'long-arm censorship' reaching a Western platform, raising questions about doxxing, free expression and cross-border pressure.

In June 2022 Reddit banned r/TumblrInAction, an 'anti-SJW' community of roughly half a million members, together with its smaller sister subreddit r/SocialJusticeInAction, citing its rule against promoting hate — a removal the communities' moderators attributed to gender-critical content and which reignited debate over consistency in Reddit's enforcement.

Reddit launched blockchain-based 'Collectible Avatars' on Polygon in July 2022 while conspicuously avoiding the word 'NFT,' drawing user backlash over unownable assets and a crypto pivot many saw as cynical — with related features later quietly sunset.

On 23 March 2022 Reddit quarantined r/GenZedong, a pro-CCP 'tankie' community of over 57,000 members, for hosting a high volume of disinformation about Russia's invasion of Ukraine.

On 1 March 2022 Reddit quarantined r/Russia, a community of over 265,000 members, for spreading disinformation about Russia's invasion of Ukraine, along with its sister subreddit r/RussiaPolitics.

After banning the notorious r/jailbait subreddit in 2011, Reddit continued to face documented child sexual abuse material (CSAM) problems through the 2020s, including a 2021 federal lawsuit and sharply rising NCMEC CyberTipline reports as the platform expanded media sharing.

A line of studies, beginning with analysis of Reddit's 2015 ban wave, measured whether removing hate communities reduced hateful activity and tracked where displaced users migrated when they did not disappear.

A January 2022 TIME investigation, based on 19 international moderators, documented that Reddit allowed hate speech to flourish in non-English and non-US communities, with company staff repeatedly ignoring moderator warnings.

Network measurements confirm that reddit.com is blocked on UAE networks, with the country's ISPs returning the platform as unreachable since around 2022 and no official reason given.

After a disastrous Fox News interview in January 2022, r/antiwork went private and a breakaway community, r/WorkReform, exploded to hundreds of thousands of members within a day, exposing a deep rift over the movement's identity.

RPAN, Reddit's quirky public-access-television-style live-streaming experiment launched in 2019, built a small but devoted broadcaster community before Reddit discontinued it on 15 November 2022, redirecting effort toward more monetizable video.

On January 25, 2022, r/antiwork moderator Doreen Ford gave a widely ridiculed live Fox News interview to Jesse Watters, triggering mass backlash that pushed the 1.7-million-member subreddit to go private and spawned the breakaway r/WorkReform.

During Reddit's 2022 r/place collaborative pixel event, organized Twitch streamers led by xQc directed hundreds of thousands of viewers to seize and erase canvas territory, and Reddit administrators stepped in to cover xQc's artwork with a black box — the first time admins removed r/place art that was not hate speech.

The influencer-promoted 'Save the Kids' charity token, exposed as a pump-and-dump, was partly organized through Reddit — where YouTuber Sam Pepper promoted the project, built its moderator team, and reportedly handled the presale.

As r/wallstreetbets drove the January 2021 GameStop short squeeze, Discord banned the community's server for repeated hate-speech violations, and days later a group of returning moderators attempted to seize control of the subreddit to cash in on a movie deal, prompting Reddit to remove them.

Days after the GameStop squeeze, an investor filed a proposed securities-fraud class action alleging Keith Gill ('DeepFuckingValue'/'Roaring Kitty') hid that he was a licensed professional while promoting GameStop to retail traders.

On Feb. 18, 2021, the r/wallstreetbets figure 'DeepFuckingValue' testified before the House Financial Services Committee, denying he coordinated the GameStop squeeze and insisting he was an ordinary investor.

r/India, one of the largest country subreddits, has faced persistent accusations of opaque, politically biased moderation, including shadowbans and selective deletions around sensitive national events.

u/N8theGr8 became a recurring example of Reddit's 'power moderator' problem — a single volunteer who, by 2021, moderated dozens of communities containing millions of members and organized a cross-subreddit protest demanding Reddit act on COVID-19 misinformation.

A handful of 'power moderators' control a disproportionate share of Reddit's biggest communities. The long-running controversy over u/AwkwardTheTurtle became the emblem of the problem.

Reddit quarantined the misogynistic 'Men Going Their Own Way' subreddit in 2020 and permanently banned r/MGTOW and r/MGTOW2 in August 2021 for promoting hate and violence against women.

India's IT Rules 2021 and Section 69A blocking powers brought Reddit within a confidential, executive-driven content-takedown regime, with intermittent ISP-level blocking of Reddit reported across the period.

Reddit administrators permanently suspended the account of r/conspiracy's most prominent moderator, axolotl_peyotl, citing repeated content-policy violations — a direct admin removal of an entrenched head moderator that the community treated as both overdue and as admin overreach.

In late August 2021, moderators of roughly 135 subreddits took their communities private to protest Reddit's refusal to act on COVID-19 misinformation; days later Reddit banned the COVID-denialist hub r/NoNewNormal — citing brigading rather than misinformation — and quarantined 54 other subreddits.

Reddit hosted active pro-eating-disorder communities such as r/proED; a peer-reviewed longitudinal study using Reddit data found measurable real-world weight loss and shrinking weight goals among participants.

The SEC's October 2021 staff report on the GameStop episode concluded that broad positive sentiment — not a classic short or gamma squeeze — sustained the run-up, and flagged 'digital engagement practices' for further study.

SafeMoon, a token whose creators later faced US fraud charges, went viral partly through weekly Reddit AMAs and promotion on crypto subreddits, with a project insider calling the AMAs the 'primary reason' for its early success.

Reddit hired a controversial figure as an administrator, then banned a moderator for linking to reporting about her — sparking a mass subreddit blackout before the company reversed course.

The viral 2021 search for Gabby Petito energized true-crime communities on Reddit and other platforms, but the same amateur-investigation impulse led sleuths to publicly accuse and harass innocent people, reviving longstanding concerns about crowdsourced detective work.

During the January 2021 GameStop squeeze, members of Reddit's r/WallStreetBets directed an off-platform harassment campaign at short-seller Andrew Left of Citron Research, including hacked accounts used to contact his children.

r/CryptoMoonShots, a subreddit dedicated to surfacing tiny new tokens, became a recurring funnel for rug pulls and 'honeypot' contracts — including the notorious SQUID token — where promoters used bot-driven engagement to lend fake credibility.

Created in September 2020 and named after a Republican figure who died of COVID-19, r/HermanCainAward grew to hundreds of thousands of members documenting people who publicly dismissed vaccines or masks and then died of the disease — a viral phenomenon that forced a public debate over pandemic misinformation, grief and online shaming.

Reddit's amateur-detective culture, centered on subreddits such as r/RBI ('Reddit Bureau of Investigation'), has been studied and criticized for crowd-sourced 'websleuthing' that can misidentify innocent people and degrade real investigations — a pattern documented in peer-reviewed research and journalism beyond the well-known Boston Marathon case.

In late January 2021 a Reddit community called r/SatoshiStreetBets openly organized a 'coordinated' buy-in that drove Dogecoin up more than 800% in a day, in a dynamic regulators and academics described as a textbook pump-and-dump.

r/Sino, a heavily pro-Chinese-Communist-Party community, became a long-running flashpoint over CCP-aligned content, denial of Uyghur persecution, and aggressive moderation, while Reddit declined to ban it.

After moderator u/pinkcatsonacid publicly raised concerns about newer r/Superstonk moderators, the subreddit's lead moderators stripped her of her position and banned her, triggering mass resignations and the migration of tens of thousands of GameStop 'apes' to the breakaway community r/GMEJungle.

At the height of the January 2021 GameStop frenzy, Discord banned the official WallStreetBets server for hate speech and the subreddit briefly went private, amid accusations that some moderators were trying to cash in on the community's sudden fame.

In August 2020 attackers hijacked moderator accounts to deface more than 70 subreddits — including r/space, r/NFL, and r/food — with pro-Trump messaging. Reddit confirmed that none of the compromised accounts had two-factor authentication enabled.

In June 2020, amid the George Floyd protests and mounting criticism of Reddit's tolerance of hate, co-founder Alexis Ohanian resigned from the board and urged the company to fill his seat with a Black candidate — a move that produced Reddit's first Black board member and previewed the platform's broader racial reckoning.

In 2018 Dylan Jarrell of Kentucky used an anonymous Reddit account to post statements signaling a planned school shooting; he was stopped while equipped to carry one out, pleaded guilty to federal charges in 2019, and was sentenced to 120 months in July 2020.

Robert Allam, known as GallowBoob, became one of Reddit's highest-karma users and a moderator of dozens of large subreddits, drawing accusations of mass self-promotion and karma farming before a viral 'power mod' list triggered harassment and his eventual withdrawal from the platform.

After r/Screenwriting users called certain screenwriting competitions scams, the contests' operator sued the subreddit's volunteer moderator and 50+ unnamed users for defamation; the moderator was dismissed under Section 230.

r/ChapoTrapHouse, the left-wing 'dirtbag left' podcast community, was banned on June 29, 2020 in Reddit's mass content-policy purge — the most prominent non-right-wing subreddit removed that day.

r/DarkHumorAndMemes was one of the most active subreddits removed in Reddit's June 29, 2020 mass purge, banned under the new rule against hate based on identity for using a 'dark humor' framing to host identity-based hate.

Reddit banned r/GenderCritical, its largest gender-critical feminist community (~64,000 members), on June 29, 2020 under a new rule against hate based on identity, characterizing the sub as anti-transgender.

On June 29, 2020 Reddit rewrote its content policy into eight explicit rules and banned roughly 2,000 subreddits the same day under a new rule against hate based on identity or vulnerability — the largest enforcement event in its history.

u/maxwellhill, one of Reddit's oldest, highest-karma, and most prolific moderators, went silent around the July 2, 2020 arrest of Ghislaine Maxwell, fueling widely reported online speculation — unconfirmed and denied — that the two were the same person.

Reddit removed WallStreetBets founder Jaime Rogozinski as a moderator in 2020 for 'attempting to monetize a community,' a move he later challenged in a 2023 lawsuit alleging the rationale was a pretext to control a valuable brand; courts ultimately ruled against him.

A baseless 2020 QAnon theory that the retailer Wayfair was trafficking children spread rapidly after appearing on r/conspiracy, leading to the harassment of real families whose missing-relative cases were dragged into the falsehood and straining a national anti-trafficking hotline.

After Reddit's 2015 harassment bans, users of r/fatpeoplehate and r/CoonTown flooded Voat, a 'free speech' Reddit clone that became a haven for communities banned from the platform — and a real-world test of whether deplatforming works, before it collapsed for lack of funding on Christmas Day 2020.

The Watchtower Bible and Tract Society used a DMCA Section 512(h) subpoena to try to unmask an anonymous r/exjw critic; a federal court quashed it on fair-use and anonymous-speech grounds in March 2020.

After years of warnings and a 2019 quarantine, Reddit banned the pro-Trump subreddit r/The_Donald in June 2020. Its community had already built and migrated to the independent site TheDonald.win (later patriots.win), which reputable reporting and the official January 6th Committee report later tied to violent rhetoric and planning around the 2021 Capitol attack.

Reddit's largest pro-Trump community was quarantined in 2019 over threats of violence and banned in 2020 as part of a sweeping hate-speech policy update.

r/antiMLM grew into one of the internet's largest hubs for exposing multi-level-marketing schemes such as LuLaRoe, fueling mainstream coverage and clashing with MLM recruiters who tried to defend the model.

Canada's largest subreddit was accused, with leaked chat logs, of being run by moderators with ties to white-nationalist content — including one who placed a $250 'bounty' on a Vice journalist — while the platform's seniority rules made the implicated moderators effectively impossible to remove.

In February 2020 the horror-fiction community r/nosleep went private in protest after years of having its authors' original stories narrated, monetized, and even resold without credit or permission.

Vermont's Samuel Bent, a multi-marketplace darknet drug vendor and participant in Reddit's r/DarkNetMarkets community who later helped run the Reddit-style Dread forum, pleaded guilty and was sentenced to five years in 2019.

A 2019 clip of streamer DarksydePhil arguing that 'general' racial jokes are acceptable reached a wide audience after being reposted to r/LivestreamFail, the subreddit that has served as a central hub for documenting streamer controversies.

A whistleblower's October 2018 Reddit post exposed that skincare brand Sunday Riley had its employees write fake Sephora reviews under invented identities — a tip that helped trigger an FTC investigation and settlement over fake-grassroots review fraud.

In January 2019 Reddit locked a large group of accounts after detecting unusual activity it attributed to credential stuffing, forcing affected users to reset passwords. Some users disputed the explanation, suspecting a direct compromise.

Reddit quarantined the 400,000-subscriber r/CringeAnarchy in September 2018 and banned it on April 25, 2019 after it hosted anti-Muslim content justifying the Christchurch mosque massacre.

Reddit banned r/Honkler on July 2, 2019, days after r/Frenworld, for using clown-Pepe 'Clown World' memes as a vehicle for coded neo-Nazi and antisemitic content.

Reddit quarantined the subreddit for IRL streamer Ice Poseidon in September 2018 for bigotry and abuse, then banned r/Ice_Poseidon and r/Ice_Poseidon2 in October 2019; the community was notorious for swatting, doxxing, and stream-sniping.

In January 2019 Reddit removed r/Jakolandia, a Philippine-based community, after Filipino news outlets and users exposed it for circulating sexualised images of women — including celebrities and private individuals — taken and shared without consent, a case that drew national attention in the Philippines to Reddit's handling of image-based abuse.

On March 15, 2019, within hours of the livestreamed Christchurch mosque shootings, Reddit permanently banned the long-running r/WatchPeopleDie (300,000+ subscribers) and r/gore communities after users shared footage of the attack, citing its policy against glorifying or encouraging violence.

Reddit banned r/frenworld on June 20, 2019 for glorifying or encouraging violence, after the cartoon-frog 'fren' aesthetic was found to mask an economy of coded neo-Nazi and antisemitic dogwhistles.

Reddit CEO Steve Huffman testified before a House Energy & Commerce subcommittee hearing on October 16, 2019, arguing that weakening Section 230 was an 'existential threat' to Reddit — drawing the platform directly into the political fight over platform liability for user content.

Reddit banned one subreddit and 61 accounts after concluding that a cache of leaked US-UK trade documents — weaponized in the 2019 UK general election — was posted as part of a coordinated Russian influence campaign.

After cyclist Susan Rainwater was killed in a 2018 hit-and-run in Washington State, a trooper posted a photo of a broken plastic fragment to Reddit's r/WhatIsThisThing; a user identified it as a part from a 1980s Chevrolet pickup, helping narrow the search to a suspect who later pleaded guilty.

In 2019 BuzzFeed News reported that Reddit users were observing apparently coordinated pro-China activity, with new accounts swarming threads on Tiananmen, Huawei, and Falun Gong, amid heightened scrutiny after Tencent's investment.

In February 2019 Chinese tech giant Tencent invested $150 million as part of a $300 million Reddit funding round, triggering a site-wide protest in which users flooded Reddit with content banned in China — Tiananmen 'Tank Man' images and Winnie the Pooh — over fears of CCP-aligned censorship. The episode amplified longstanding concerns about coordinated pro-Beijing activity.

In January 2019, Reddit forced the ~425,000-subscriber r/soccerstreams — a hub for illegal live match streams — to cease user activity after repeated copyright complaints, amid intensifying Premier League legal action against piracy.

Brian Parker ran internet research-chemical operations selling synthetic opioids and used a Reddit presence for customer contact; after a 2016 shipment of U-47700 was tied to an overdose death, he and a co-defendant were charged in 2017 and pleaded guilty in 2018.

In July 2018 Reddit CEO Steve Huffman told a 17-year-old user in private messages that banning hate speech was 'not really done' and that Reddit was 'not the thought police' — and after the teenager published the exchange, his account was suspended for a week.

A 2018 Vice investigation detailed a for-hire Reddit astroturfing operation run by a user called 'Aaron,' who orchestrated paid upvote campaigns and networks of dummy accounts — each on its own proxy IP — to artificially pump cryptocurrency projects on r/CryptoCurrency and beyond.

A 2018 academic study analyzed 7,426 paid campaigns and over 1.8 million microtasks on a crowdsourcing marketplace, cataloguing an industrialized trade in bought upvotes, fake comments, and vote manipulation across social platforms including Reddit-style voting.

BitConnect, a ~$2.4 billion cryptocurrency Ponzi scheme that promised guaranteed returns from a fictitious trading bot, was heavily promoted within an active Reddit community (r/bitconnect) until its January 2018 collapse; U.S. authorities later indicted its founder and convicted its top U.S. promoter.

Hours after the U.S. Senate passed FOSTA in March 2018, Reddit banned several long-running sex-work communities and revised its content policy, in a move sex workers said deplatformed harm-reduction and community spaces, not just advertising.

Germany's Network Enforcement Act (NetzDG) imposed strict 24-hour removal timelines and transparency reporting on large social platforms, with fines up to €50 million, setting an early template for the content-moderation duties now binding on platforms including Reddit.

After Reddit banned its deepfake-pornography community in 2018, the activity migrated off-platform and coalesced into MrDeepFakes, which grew into one of the largest deepfake-abuse sites before its 2025 collapse — a case study in how a ban can displace rather than end harm.

A large-scale study measured how antisemitic rhetoric and imagery escalated after political flashpoints on fringe boards and spread toward mainstream platforms, including Reddit, providing a sourced map of online hate diffusion.

Between June 14–18, 2018, an attacker intercepted SMS-based two-factor authentication codes for several Reddit employees and used the access to download a complete 2007 site backup containing early users' usernames, salted-and-hashed passwords, email addresses, and all of their public and private content.

In its 2017 transparency report, Reddit disclosed it had identified and banned 944 accounts of 'suspected Russian Internet Research Agency origin' that posted over 14,000 times around the 2016 US election.

Reddit shut down r/DarkNetMarkets, the platform's largest discussion-and-review hub for dark-web drug marketplaces, under a new March 2018 content policy banning communities that facilitate transactions in prohibited goods.

On September 12, 2018 Reddit banned r/GreatAwakening — the largest QAnon hub — and roughly 18 related subreddits for inciting violence, harassment, and doxxing.

Reddit banned r/MillionDollarExtreme — the community tied to Sam Hyde's comedy troupe — on September 10, 2018 for violating its violent-content rules, two days before the QAnon sweep.

Reddit removed r/shoplifting, a community of roughly 80,000 members dedicated to discussing theft techniques and posting stolen-goods 'hauls,' as part of its March 2018 content-policy crackdown.

In August 2018 Reddit became inaccessible in mainland China, joining Google, Facebook, and Twitter behind the Great Firewall, with the platform remaining blocked into the 2020s.

In August 2018 Reddit removed roughly 143 accounts linked to an Iran-aligned inauthentic news network exposed as 'Liberty Front Press,' which had seeded Iran-friendly content into political subreddits.

On September 27-28, 2018, Reddit formalized and expanded its 'quarantine' mechanism — gating offensive subreddits behind an opt-in warning page, stripping ad revenue, and hiding them from search — then applied it to more than 20 communities including r/CringeAnarchy, r/WatchPeopleDie, r/TheRedPill, and r/Braincels, triggering accusations of censorship and inconsistent enforcement.

On March 21, 2018, Reddit revised its content policy to prohibit transactions involving firearms, ammunition, and explosives, banning subreddits including r/GunsForSale, r/GunDeals, and r/AKMarketplace that connected buyers and sellers.

Russia's Internet Research Agency staged a Reddit 'Ask Me Anything' through fake Black-activist front sites, then answered questions largely posed by its own accounts — even copying queries a Daily Beast reporter had sent in advance to fill out the thread.

A Southern Poverty Law Center analysis found that r/The_Donald functioned as a bridge carrying white-nationalist slogans and coded epithets from fringe forums into one of Reddit's most-trafficked political communities.

After Reddit banned r/SanctionedSuicide in March 2018, its founders launched a standalone forum that journalists and regulators later linked to dozens of deaths and the spread of a specific poisoning method.

After the Parkland school shooting, conspiracy communities including r/conspiracy, r/The_Donald, and r/CBTS_Stream amplified false 'crisis actor' claims against teenage survivor David Hogg, who received death threats and was later swatted at his family's home.

Reddit's first full visual overhaul in years rolled out in April 2018 to widespread complaints about wasted space, slower load times and a more app-like card layout, prompting a large cohort of users to retreat permanently to old.reddit.com.

After the 2018 Jacksonville Landing shooting, far-right outlets falsely claimed the shooter ran a Reddit account named 'Ravenchamps' — which actually belonged to an uninvolved Minnesota man — subjecting an innocent bystander to a harassment campaign.

The creator and top moderator of r/KotakuInAction abruptly set the 100,000-member community private and stripped its other moderators, only for Reddit administrators to reverse the takeover within roughly an hour and later remove him entirely.

In 2018 r/BlackPeopleTwitter introduced 'Country Club' threads that required users to verify their race by photo before commenting, a governance experiment that drew national debate over identity, moderation, and inclusion.

r/KotakuInAction, Reddit's central Gamergate hub, was never permanently banned; in July 2018 its founder briefly privated it calling it 'infested with racism and sexism,' but Reddit admins restored it within about an hour.

The subreddit r/deepfakes coined the term and pioneered AI face-swapped non-consensual celebrity pornography before Reddit banned it and related communities in February 2018 under its involuntary-pornography policy.

In a widely-cited peer-reviewed study, communication scholar Adrienne Massanari argued that Reddit's harassment problem is not incidental but structural — that the platform's voting algorithm, hands-off governance, and geek-masculine culture actively support what she termed 'toxic technocultures,' using Gamergate and The Fappening as evidence.

Days after fatally stabbing his ex-girlfriend Melinda Vasilije in Kitchener, Ontario, Ager Hasan posted an account of the killing to Reddit while a fugitive; he was arrested in Texas, extradited, and convicted of second-degree murder in 2023.

After CNN identified the anonymous Reddit user behind a Trump-shared anti-CNN wrestling meme in July 2017, its statement reserving the right to publish his name triggered the #CNNBlackmail backlash and a wave of harassment against CNN journalists' families.

Federal prosecutors convicted four men — Ryan Collins, Edward Majerczyk, George Garofano and Emilio Herrera — for phishing schemes that compromised celebrities' iCloud and Gmail accounts; the stolen nude photos were mass-distributed on Reddit's r/TheFappening in 2014.

In November 2017, Electronic Arts' reply defending 'Star Wars: Battlefront II' loot-box progression became the most downvoted comment in Reddit history — later certified by Guinness World Records — and a turning point in the backlash against paid game mechanics.

Dan McComas and Jessica Moreno, who left Reddit in 2015 over disagreements about how the site should be run, raised about $11 million to build Imzy — a community platform with civility rules meant to fix Reddit's harassment problems — only for the 'nicer Reddit' to shut down in 2017 for failing to find a market.

Network-measurement research by the Open Observatory of Network Interference found reddit.com blocked by Iranian ISPs as part of the country's centralized filtering regime, a block that has persisted for years.

Actress Jenna Elfman's April 2017 AMA promoting her sitcom 'Imaginary Mary' was flooded with questions about Scientology, and outlets reported nearly all of them went unanswered.

On November 7, 2017, Reddit banned the ~40,000-subscriber r/Incels community under a newly updated policy prohibiting content that encourages or glorifies violence. The incel community regrouped on r/Braincels, which Reddit quarantined in September 2018 and banned in late 2019.

Days after the August 2017 Charlottesville rally, Reddit banned r/Physical_Removal, a community that advocated the 'physical removal' and killing of leftists and glorified Pinochet-style death flights.

Reddit removed the flagship alt-right subreddit r/altright on February 1, 2017 for repeated content-policy violations, citing the doxxing of, and a 'bounty' campaign against, the man filmed punching white-nationalist Richard Spencer.

Across 2017–2018 Reddit quarantined and banned a cluster of white-nationalist subreddits — quarantining r/European in 2016 and banning it March 12, 2018, and removing r/EuropeanNationalism and similar subs in the October 25, 2017 violence-policy purge.

Reddit introduced a real-time, Facebook-style chat system in late 2017 and signaled it would eventually replace the site's long-standing private-message inbox, alarming users who relied on the threaded, asynchronous messaging Reddit had used since its early years.

In 2017 Reddit complied with Turkish government censorship orders by geo-blocking subreddits, predominantly LGBTI communities, which were withheld at source under Turkey's 'obscenity' provisions.

A subreddit that marketed itself as an uncensored news alternative was run by moderators of white-nationalist communities and grew by exploiting outrage over how other news subreddits were moderated.

In March 2017 Reddit rebuilt user profiles to resemble Facebook and Twitter — banners, follow buttons and posts made directly to a personal page — prompting fears that a community-and-voting platform was being remade into a creator-driven social network.

Tyler Barriss's fake hostage 911 call — arising from a Call of Duty wager dispute coordinated online — led police to fatally shoot uninvolved Wichita resident Andrew Finch in December 2017; Barriss was sentenced to 20 years in 2019.

After the 2017 Unite the Right rally, online crowd-sourced sleuthing wrongly identified Arkansas professor Kyle Quinn as a marcher, leading to threats and doxxing that drove him from his home — a cautionary echo of the Boston Marathon misidentifications.

Reddit's 2017 April Fools' experiment handed users a blank collaborative canvas, and within days self-organizing factions — color blocs, artwork defenders, and a black 'Void' bent on destruction — fought for control in a landmark study of online coordination.

Ahead of the FCC's 2017 net-neutrality vote, Reddit users flooded r/pics and other default communities with political call-out posts, dominating the front page and triggering a user backlash over politics on a non-political subreddit.

After acquiring the beloved third-party iOS client Alien Blue in 2014, Reddit phased it out in favor of its own rewritten official apps, pulling it from the App Store in 2016 and steering users onto a first-party client many felt was inferior.

On 27 July 2016, then-nominee Donald Trump held an 'Ask Me Anything' on the fan subreddit r/The_Donald rather than r/IAmA, and press reported he answered only about eight questions in a heavily moderated thread.

In May 2016 an attacker using the handle 'TehBVM' hijacked the moderator accounts behind dozens of large subreddits — including r/pics, r/gameofthrones, and r/books — and defaced them by altering CSS and banners, demonstrating how reused passwords and absent 2FA let one person seize control of major communities.

Academic research documented how 'pop-up' campaign communities like r/SandersForPresident and r/The_Donald reshaped Reddit during the 2016 US election, while a Data & Society study found visitors to Republican-oriented subreddits became up to 1,600% more likely to see links to controversial news sources — even as Reddit escaped the congressional scrutiny aimed at Facebook, Google and Twitter.

In May 2016, after the 2012 LinkedIn breach was revealed to have exposed roughly 117 million credentials, Reddit detected a surge in account takeovers driven by password reuse and forced password resets on about 100,000 accounts.

In late November 2016, Reddit CEO Steve Huffman (u/spez) used his admin database access to silently rewrite comments from r/The_Donald users who had insulted him, replacing his own username with the names of the subreddit's moderators. He admitted it after users noticed and later issued a formal apology.

Reddit's 2015 transparency report quietly dropped its 'warrant canary' — a standing statement that it had never received a National Security Letter or other classified surveillance demand. The canary's removal signaled that Reddit had likely been served a secret government request it was legally gagged from disclosing.

In January 2016 the founder of the roughly 100,000-subscriber r/Frisson sold full moderator control of the community for about $1,000 to the operator of a frisson-themed website, in plain violation of Reddit's rules against selling communities.

After r/The_Donald repeatedly dominated Reddit's front page, the company changed the r/all ranking algorithm in June 2016 and later launched r/popular — moves praised by some as fixing manipulation and condemned by others as targeted suppression.

A 2016 AMA meant to celebrate the 20th anniversary of the Fugees' 'The Score' collapsed when Redditors flooded musician Wyclef Jean with questions about his shuttered Haiti charity, Yéle Haiti; he answered a few, then deleted his account.

Reddit hosted r/pizzagate, where the false 'Pizzagate' conspiracy was incubated and named individuals and a D.C. pizzeria were targeted; weeks after Reddit banned it for doxxing, a gunman fired a rifle inside the restaurant.

In 2016 r/The_Donald exploited Reddit's moderator 'sticky' feature and coordinated upvoting to flood r/all and dominate the front page, prompting Reddit to change its ranking algorithm and later replace r/all with r/popular.

During the breaking-news aftermath of the June 12, 2016 Pulse nightclub shooting in Orlando, r/news moderators removed thousands of comments and banned many users, triggering mass accusations of censorship and a wave of unsubscriptions. Some moderators later acknowledged they handled it poorly.

A young man killed in a 1995 Virginia car crash went unidentified for two decades as 'Grateful Doe'; a Reddit community devoted to the case, working with other volunteers, helped renew attention that led to his 2015 identification through DNA as Jason Callahan. No crime was involved.

A widely cited BuzzFeed News investigation argued that Reddit's structure and hands-off governance had made it a hospitable environment for organized hate communities, framing the problem as systemic rather than incidental.

After r/CreepShots was shut down in 2012, near-identical communities — r/CandidFashionPolice (covert photos reframed as 'fashion critique') and r/PhotoPlunder (nudes scraped from misconfigured photo-host accounts) — persisted for years, exposing how slowly Reddit enforced its own non-consensual imagery rules.

Reddit interim CEO Ellen Pao resigned on July 10, 2015, after the surprise firing of popular talent director Victoria Taylor triggered a site-wide moderator revolt, and a petition demanding her ouster drew more than 200,000 signatures amid a torrent of sexist and racist abuse directed at her.

Civil-rights leader Jesse Jackson's late-June 2015 Reddit AMA was overrun by hostile, highly upvoted questions, becoming a widely cited example of how unscripted AMAs can turn against polarizing public figures.

Joshua Ryne Goldberg, a prolific Reddit troll who created and moderated racist subreddits including r/CoonTown, was arrested by the FBI in 2015 after, posing as an ISIS supporter, he supplied bomb-making instructions for an attack on a Kansas City 9/11 memorial; he was sentenced to 10 years in federal prison.

Weeks after raising the price of the drug Daraprim from $13.50 to $750 a pill, Turing Pharmaceuticals CEO Martin Shkreli held a defiant Reddit AMA in October 2015 that drew widespread hostility and became a case study in PR misjudgment.

On August 5, 2015, returning CEO Steve Huffman (u/spez) rolled out an updated content policy and banned r/CoonTown along with a cluster of openly racist subreddits, while introducing a new 'quarantine' tier for offensive-but-permitted communities.

Reddit banned r/beatingwomen in 2014 after its moderators were caught sharing users' personal information, and named r/rapingwomen among communities banned in 2015 for inciting violence and rape.

On June 10, 2015, Reddit banned r/fatpeoplehate and four other subreddits under an anti-harassment policy first announced in May 2015, triggering a site-wide revolt that flooded r/all and targeted interim CEO Ellen Pao with abuse.

Indonesia blocked Reddit in 2014 over nudity, and Russia's Roskomnadzor blocked the entire site in August 2015 over a single post explaining how to grow psilocybin mushrooms, illustrating how individual content disputes triggered nationwide bans.

Reddit became a primary hub for the 2014 'Fappening' celebrity nude-photo leaks via the r/TheFappening subreddit, removing it only under DMCA and child-imagery pressure; nearly six months later, on February 24, 2015, Reddit announced a privacy-policy change banning the posting of explicit images of anyone without their consent.

In 2015 Reddit removed r/GasTheKikes and its successor r/KikeTown — openly antisemitic communities whose names invoked the Holocaust — but only after months of external pressure, exemplifying the platform's slow, reactive enforcement against hate that its own 2015 harassment policy was supposed to address.

In August 2015 Russia's media regulator Roskomnadzor blacklisted all of Reddit over a single post containing a guide to growing psilocybin mushrooms, then lifted the block a day later when Reddit restricted the content.

The Southern Poverty Law Center documented a self-described network of dozens of interlinked racist subreddits, the 'Chimpire,' that grew on Reddit for nearly two years before the 2015 ban wave dismantled its hub.

Fans of the comedy group Million Dollar Extreme repeatedly tricked media outlets and even a member of Congress into naming comedian Sam Hyde as the perpetrator of mass shootings — a recurring hoax circulated across Reddit and other platforms that injected false suspect names into breaking-news coverage.

From 2015 to 2019 Reddit ran a series of April Fools' Day social experiments — most famously r/thebutton, a 60-second countdown timer that a million accounts could each press exactly once — which fractured users into color-coded factions that observers compared to religions and cults.

Reddit moved from tolerating 'witch hunts' to formal anti-doxxing and anti-harassment rules only after a string of high-profile misidentifications and harassment campaigns, culminating in its 2015 policy overhaul.

During the Bitcoin 'block size' war, r/Bitcoin's lead moderator 'theymos' deleted comments, banned users, and removed moderators who supported alternative software like Bitcoin XT — pushing dissenters to found the rival r/btc.

The abrupt firing of AMA coordinator Victoria Taylor triggered a revolt in which moderators of r/IAmA and more than a thousand other subreddits went private in protest.

After Reddit banned r/creepshots in 2012, the same non-consensual-photo community resurfaced thinly disguised as r/CandidFashionPolice and ran for roughly three years before being banned under Reddit's 2015 involuntary-pornography policy.

After Reddit banned r/TheFappening — which its creator called the fastest-growing subreddit in history, with more than 250 million page views in under a week — the community's unrepentant founder held an AMA, users accused Reddit of profiting before acting, and weeks later the company closed a $50m funding round that commentators branded 'peak irony.'

Bill Cosby's June 2014 Reddit AMA and a later #CosbyMeme promotion were overrun as users surfaced the decades-old sexual-assault allegations against him — an early, vivid case of a celebrity PR push on Reddit and social media colliding with the audience's own agenda.

Across multiple AMAs beginning in 2013, Microsoft co-founder Bill Gates engaged at length on philanthropy, technology, and public health — sessions widely cited as a model of how the format can succeed, in contrast to the genre's many disasters.

During the GamerGate harassment campaign, Reddit communities — most prominently r/KotakuInAction — served as a major hub for coordination and amplification, as targets including Zoe Quinn, Brianna Wu, and Anita Sarkeesian faced doxxing, threats, and forced evacuations from their homes.

Indonesia blocked Reddit (alongside Vimeo and Imgur) in 2014 under its 'Internet Positif' anti-pornography filtering regime, and the block has persisted for over a decade.

Reddit hosted a cluster of communities built around sharing images of women obtained without consent — including r/photoplunder, which scraped private photos from Photobucket, and r/CandidFashionPolice — curbed largely by outside legal pressure rather than Reddit policy.

In October 2014 Reddit acquired Alien Blue—the most popular unofficial iOS Reddit app, built by a single developer—and made it the company's first official mobile app, an admission that outsiders had built mobile Reddit before Reddit did.

Reddit unveiled plans for a native cryptocurrency, 'Reddit Notes,' promising to distribute 950,000 tokens to the community in 2015, but the project was quietly abandoned within months amid regulatory uncertainty and leadership upheaval.

Reddit confirmed it had globally banned several moderators of large adult communities, including r/nsfw, after they accepted bribes from a spammer to approve content — one of the company's clearest admissions of mod pay-for-play.

In December 2014, after the Guardians of Peace breach of Sony Pictures, Redditors used r/SonyGOP to index and link the leaked emails, scripts, salaries, and employee data — until Reddit removed the subreddit and banned its lone moderator following DMCA pressure from Sony.

In 2014 Reddit's Dogecoin community channeled a joke cryptocurrency into real-world goodwill — funding the Jamaican Olympic bobsled team, sponsoring a NASCAR driver, and backing water and service-dog charities — in a celebrated display of crowd philanthropy.

Reporting in 2014 documented Reddit's r/fakeid community, active since around January 2012, as an open hub where users found fake-identification vendors, shared reviews and vendor rankings, and read guides on buying and using counterfeit IDs.

Ben Eisenkop, the wildly popular ecology educator known on Reddit as Unidan, was banned in July 2014 after admins found he used at least five sockpuppet accounts to upvote his own content and downvote a user he was arguing with over whether jackdaws are crows.

The subreddit r/HailCorporate, founded to catalogue suspected stealth marketing on Reddit, became a high-profile illustration that covert brand advertising — users posing as ordinary fans of a product — was widespread enough to need a dedicated watchdog community.

r/Pyongyang, a subreddit role-playing as an official North Korean news bulletin that bans anyone critical of Kim Jong-un, became a long-running Reddit meme — a satirical mirror held up to heavy-handed moderation across the platform.

Moderators of r/technology, then a Reddit default subreddit, were exposed in April 2014 for secretly using AutoModerator to delete any submission whose title contained ~50 banned keywords including 'NSA', 'Snowden', 'Bitcoin', and 'net neutrality'. Reddit removed the subreddit from its default list in response.

Programmer and activist Aaron Swartz, who joined Reddit through the 2005 Infogami merger and is widely (if contestedly) called a co-founder, died by suicide in 2013 while facing aggressive federal CFAA prosecution over the JSTOR/MIT downloads.

In the chaos after the 2013 Boston Marathon bombing, Reddit users wrongly named several innocent people as suspects — including Brown University student Sunil Tripathi, who had already died by suicide a month before the attack.

Astronaut Chris Hadfield conducted a Reddit AMA in February 2013 while aboard the International Space Station, a session widely hailed as one of the best in the platform's history and a positive counterexample to PR-driven celebrity AMAs.

Reddit's 2013 year-end blog listed Eglin Air Force Base — a Florida base with a population under 3,000 — as its most reddit-addicted 'city,' an anomaly that drove persistent speculation about coordinated military or government activity on the platform.

Morgan Freeman's April 2013 promotional Reddit AMA drew tens of thousands of participants but was widely panned for terse, low-effort answers, with many users suspecting a publicist was typing the responses.

On 17 July 2013, Reddit removed two of its most prominent and most criticized communities — r/atheism and r/politics — from its default subreddit list, a curation decision that underscored the company's editorial power over what users see.

In June 2013 Reddit banned the entire Quickmeme domain site-wide after r/AdviceAnimals moderators presented evidence that the meme site's owner had used bot accounts to upvote Quickmeme links and bury competitors.

Beyond the widely remembered misidentification of Sunil Tripathi, Reddit's r/findbostonbombers also helped circulate the faces of 17-year-old track athlete Salaheddin Barhoum and Yassine Zaimi, who were innocent spectators splashed across a tabloid front page as 'Bag Men.'

In April 2013 a Reddit user posted a 'Confession Bear' meme claiming to have killed an abusive man and disguised it as an overdose; amateur sleuths named a suspect and San Diego police opened an inquiry, but no crime was ever substantiated and no charges followed.

In December 2013, users coordinating on r/MensRights flooded Occidental College's anonymous sexual-assault reporting form with roughly 400 false reports in about 36 hours, a clear case of subreddit-organized brigading against an external target.

In 2013 the founder and top moderator of r/atheism, 'skeen', was removed by other moderators citing his inactivity, opening the way for sweeping rule changes that split one of Reddit's largest communities.

During an AMA for his side project How to Destroy Angels, musician Trent Reznor answered a fan's question about signing to a major label with a sarcastic 'the wifi on our yacht is having issues' brush-off that went viral.

In April 2013, users of r/MensRights set out to identify the anonymous author of a feminist blog, but misidentified an uninvolved woman — who then received death threats at her school and workplace, prompting Reddit to threaten to shut the subreddit down.

The r/SilkRoad subreddit served as a public discussion hub for users of the Silk Road dark-net drug marketplace; when the FBI seized Silk Road and arrested Ross Ulbricht in October 2013, moderators briefly took the community private over identity-exposure concerns before reopening it.

On 29 August 2012, sitting US President Barack Obama held a Reddit AMA during his re-election campaign — a landmark moment for the platform that briefly overwhelmed the site's servers and legitimized Reddit as a political venue.

In 2012 Reddit banned the account SolInvictus — operated by Ian Miles Cheong — after the Daily Dot reported he used his moderator positions on some of Reddit's largest subreddits to push links from sites that paid him, including GlobalPost, which confirmed it had hired him as a paid 'social media consultant.'

In June 2012 Reddit's anti-spam crackdown banned entire mainstream-publisher domains — The Atlantic, Businessweek, PhysOrg, GlobalPost, and Discovery News — and swept up Andrew Sorcini, the ex-Digg power user once dubbed 'the king of all social media.'

Co-founder Steve Huffman acknowledged that in Reddit's early days he and Alexis Ohanian populated the empty site with large numbers of fake accounts they controlled, manufacturing the appearance of an active community and setting its cultural tone.

On 18 January 2012, Reddit went dark for twelve hours to protest the Stop Online Piracy Act and the PROTECT IP Act, helping catalyze the largest coordinated online protest in history and contributing to both bills being shelved.

After Gawker journalist Adrian Chen unmasked the moderator 'Violentacrez,' volunteer moderators of several large subreddits — including r/politics — retaliated by banning all links to Gawker Media sites, exposing the tension between Reddit's anti-doxxing norms and press accountability.

Gawker's Adrian Chen identified Reddit's most notorious moderator, 'Violentacrez', as a 49-year-old Texas programmer — igniting a fierce debate over anonymity, doxxing, and moderator power.

Actor Woody Harrelson's 2012 'Ask Me Anything' descended into a debacle when he refused to discuss anything but his new film Rampart, crystallizing concerns that celebrity AMAs had become undisclosed, PR-managed marketing.

CEO Yishan Wong formalized a sweeping 'we stand for free speech' policy in the wake of the Gawker outing of moderator 'Violentacrez,' setting a content-permissiveness stance that defined and dogged Reddit for years.

r/CreepShots hosted secretly-taken sexualized photos of women and girls in public without their consent. After a Georgia teacher case and Gawker's October 2012 unmasking of moderator 'Violentacrez' (Michael Brutsch), the subreddit was shut down.

After science communicator Rebecca Watson mildly described an uncomfortable late-night encounter, a backlash dubbed 'Elevatorgate' spread across the online atheist community — including Reddit — and escalated into years of misogynistic harassment, rape and death threats.

In one August 2011 fortnight, the moderators of rage-comic hub r/F7U12 deliberately wrecked their own quarter-million-subscriber community, and the creator of r/IAmA threatened to shut down Reddit's flagship Q&A forum — early proof that Reddit's most valuable spaces were autocracies run by unaccountable volunteers.

In October 2011 Reddit closed r/reddit.com, the site's original catch-all community, and expanded its curated default subreddits to twenty—an under-recognized governance shift that put admins in charge of what the front page, and Reddit's culture, would become.

In October 2011 Reddit shut down r/jailbait, a community built around sexualized images of minors, after a CNN 'Keeping Them Honest' segment and an incident involving solicitation of illegal images — the platform's first major child-safety reckoning.

For roughly three years Reddit hosted r/jailbait, a community trading sexualized images of underage girls, before public pressure forced its closure in October 2011.

In 2010 a Reddit campaign urging Stephen Colbert to hold a rally spun off a charity drive for DonorsChoose that raised hundreds of thousands of dollars in days — an early, defining demonstration of the community's capacity for organized goodwill.

Digg's disastrous August 2010 'v4' redesign alienated its power users, who staged a 'Quit Digg Day' and fled en masse to Reddit — a migration credited with helping Reddit overtake its older rival as the dominant social-news site.

In early 2010 Reddit erupted over 'Saydrah', a prominent moderator revealed to work for a content company while moderating communities her employer's material could appear in — an early reckoning over undisclosed conflicts of interest and power-user influence.

For over a decade Reddit had no usable mobile app of its own, so a cottage industry of independent developers—Alien Blue, Apollo, Reddit is Fun, Sync, BaconReader—built the mobile Reddit millions used, until Reddit's 2023 API pricing wiped the ecosystem out.

Reddit launched in June 2005 out of Y Combinator's first class and grew into 'the front page of the internet' on a near-absolutist free-speech ethos that would later collide with hate, harassment and child-safety scandals.