r/Startup_Ideas rules, stats, and what to post

Rule summary

No subreddit-specific rules were displayed on the public rules page when Rankhog verified it on 2026-09-29.

Works well

• Post one clear startup idea with who it is for and what problem it solves, then ask the community to poke holes in it.
• Share a rough idea and ask which part people would change first, so the improving and expanding the description asks for can actually happen.
• Take someone else's posted idea and expand on it in a comment or a follow up post, combining it with your own angle.
• Describe a startup you are already building and ask for honest feedback on the idea behind it, since descriptions of startups are welcome here.
• Post two related ideas side by side and ask which one people would actually use.

Avoid

• Dropping a link with no idea behind it, because the community is built around sharing and improving ideas, not around browsing links.
• Posting a sales pitch dressed up as an idea, since the moderator one-liner asks for posts focused on sharing and improving innovative startup ideas.
• Treating the lack of published rules as permission to spam, because unfilters still judge tone and low effort posts get ignored or reported.
• Copying someone else's idea and reposting it as your own without adding anything new.
• Posting the same idea repeatedly hoping a different phrasing lands better.
• Arguing with people who poke holes in your idea instead of using the feedback.