Crosspost

A crosspost is a way of sharing an existing Reddit post from one community into another while preserving a link back to the original. Reddit has since rebranded the feature as "reposting," but the mechanic is the same: rather than copying content and stripping its origin, a crosspost embeds a preview of the source submission along with the original author's username, the community it came from, and its score. This gives readers a clear path back to the source and lets the original post and subreddit accrue credit and exposure when their content travels.

On Reddit, crossposting serves both discovery and etiquette functions. It lets users surface relevant content to new audiences—say, sharing a striking photo from a niche subreddit into a larger general-interest one—without the attribution problems of an untracked copy. Communities control whether they accept crossposts; if a subreddit disallows previously posted content, the option to crosspost there is greyed out. Because the feature makes spreading content frictionless, moderators watch for abuse: blasting the same crosspost across many unrelated communities is treated as spammy behavior and can lead to removals or bans, so the norm is to crosspost only where the content is genuinely relevant.