Blog
What we learn from reading the rules and top posts of Reddit's communities, and from the research on what gets shared.
Which subreddits allow self-promotion? 70 communities checked (2026)
Where you can post about your app or side project on Reddit, where only in a weekly thread, and where it gets removed. Rules read in November 2026.
6 November 2026
Does Reddit allow AI-generated posts? 10 subreddits that ban them (2026)
Reddit's biggest communities increasingly ban AI-written posts and answers. The exact rules of 10 that do, from r/AskReddit to r/productivity, read in November 2026.
6 November 2026
What makes a Reddit post get upvoted? What the research shows (2026)
Concrete wording is the one effect shown to cause more sharing. What a 2025 study of 15.6 million tweets and 50,517 Reddit posts found, where it fails, and what the top posts of 64 subreddits have in common.
6 November 2026