Key Takeaways: r/startups is strict and explicit: direct self-promotion in the main feed is prohibited and removed. All promotion is funneled into a recurring, stickied "Share Your Startup" thread — the one sanctioned place to link your company. The subreddit enforces account-age and karma gates through automated moderation, so new accounts get filtered before a human sees them. Beyond promotion, it also restricts surveys, co-founder searches, and thin "validate my idea" posts. The community happily helps with genuine questions about building a company but draws a hard line between asking for advice and advertising. This is a spoke of our main Reddit self-promotion rules guide, focused on r/startups. Verify everything against the live sidebar and AutoModerator sticky, because moderators revise the rules over time.
The one rule that defines r/startups
If you remember a single thing about r/startups, make it this: direct self-promotion does not belong in the main feed. Unlike more permissive communities, r/startups has built its entire posting culture around keeping the feed free of advertising, and it enforces that boundary firmly. Post your product, your landing page, your app, your newsletter, or your blog in the regular feed and it will generally be removed — often within minutes, sometimes by an automated rule before any human reads it.
This is not moderators being hostile. It is a deliberate design choice. r/startups exists so that founders can talk about the actual work of building a company without every thread turning into a pitch. The moment promotion is allowed in the feed, the signal that makes the community worth reading disappears under a flood of ads. So the moderators drew a clear line and gave promotion its own room instead — which is the mechanism the rest of this guide is really about.
How the Share Your Startup thread works
The Share Your Startup thread is r/startups' answer to the promotion problem. Rather than banning self-promotion outright, the community corrals it into a single recurring, stickied thread — generally refreshed on a monthly cadence — where founders are explicitly invited to post their companies. Inside that thread, direct promotion is not just tolerated, it is the entire point.
Using it well is a different skill from writing a good feed post:
- Read the thread's own instructions first. Each edition usually specifies a format — what to include, how to describe your stage, whether links are allowed and how. Follow it exactly; posts that ignore the format get less traction and occasionally get removed.
- Write a description, not a slogan. Everyone in the thread is promoting, so a punchy tagline blends in. A specific, honest description of what you built, who it is for, and what stage you are at gives readers a reason to engage.
- Reciprocate. The thread runs on mutual attention. Founders who read and comment on other entries — offering genuine feedback, not "cool, check mine out" — get far more back than founders who post and vanish.
- Return each cycle. Because the thread refreshes periodically, consistent participation over several editions compounds. A recognizable founder who shows up and helps every month earns standing that a one-time poster never does.
The Share Your Startup thread is not a consolation prize for being banned from the feed. It is a functioning, sanctioned channel where promotion is welcome — the trade-off is that you engage with the community there on its terms.
Why your posts get removed before anyone reads them
A frequent, frustrating experience for new founders is posting to r/startups and watching the post vanish instantly. Usually this is not a moderator's judgment — it is automation.
r/startups enforces account-age and karma thresholds through AutoModerator. Brand-new accounts and accounts with very little karma have their posts filtered automatically, because throwaway accounts are the primary vehicle for spam. If you created an account specifically to promote your startup, you have built the exact profile the filter is designed to catch. The fix is not to argue with the mods; it is to participate genuinely elsewhere on Reddit first and build a real account before you try to post.
The subreddit also removes whole categories of content beyond obvious promotion:
- Market-research surveys — "fill out my form for my startup idea" — are typically restricted or routed to a designated thread.
- Co-founder and hiring searches are usually not allowed in the main feed and have their own channels.
- "Which idea should I build?" or "validate my idea" posts are often removed as low-effort or funneled elsewhere.
- Anything that reads as an advertisement, however it is framed, goes to Share Your Startup.
If your post disappeared with no explanation, check the sidebar rules and the pinned AutoModerator comment before reposting. Reposting the same thing that just got auto-removed will not change the outcome.
Advice versus advertising: the line moderators watch
The most useful mental model for r/startups is the distinction between asking for advice and advertising, because the community polices it constantly.
Asking for advice means posting a genuine question about the craft of building a company — how to price a first product, when to hire, how to approach fundraising, how to handle a specific product decision. The value of the post to other readers is the discussion it generates, and it would still make sense to post even if you had no product to link.
Advertising means the post exists to get eyes on your company, even when it is dressed up as a question. The classic form is "I built [product], what do you all think?" — which is a launch announcement wearing a question mark. Moderators are experienced at recognizing this pattern and remove it.
The clean test: if you would not bother posting the question without the ability to mention or link your product, it is promotion, and it belongs in the Share Your Startup thread rather than the feed. Founders who internalize this line get to use r/startups as the genuinely helpful resource it is; founders who keep trying to sneak promotion past it get removed and, eventually, banned.
How the 90/10 rule plays out here
The 90/10 rule — at least 90 percent genuine participation, at most 10 percent self-promotion — is enforced structurally in r/startups rather than left to your discretion. By confining promotion to a single periodic thread and banning it everywhere else, the community effectively guarantees that the vast majority of your visible activity will be non-promotional. You could not flood the feed with links even if you wanted to.
That structure is an opportunity, not just a constraint. The founders who get the most out of r/startups treat the main feed as a place to build a reputation — answering questions, sharing hard-won lessons, being consistently useful — and treat the Share Your Startup thread as the place to occasionally cash that reputation in. When a founder people already recognize from helpful comments posts their company in the monthly thread, it carries a credibility that a cold link never could.
A practical playbook for r/startups
- Build a real account first. Age and karma gates will filter a fresh account. Comment genuinely across Reddit before you try to post here.
- Read the sidebar and the AutoModerator sticky. Know which categories are restricted before you post, so you do not waste a submission on an auto-removal.
- Keep the feed promotion-free. Use the main feed only for genuine questions and contributions. If a post needs your product link to make sense, it is not a feed post.
- Use the Share Your Startup thread for promotion. Follow its format, write a real description, and engage with other founders' entries.
- Show up repeatedly. Consistency across cycles builds the standing that makes your eventual promotion land.
For mapping the broader set of communities where startup founders can be active, our best subreddits for startups directory is a useful companion, and if you want the channel handled end to end, our Reddit marketing for startups service covers strategy through execution.
The bottom line on r/startups
r/startups is one of the strictest large communities a founder will encounter, but the strictness is what makes it valuable. Because the feed is kept free of advertising, the discussions stay genuinely useful, and because promotion has a sanctioned home in the Share Your Startup thread, you are never actually locked out — you just have to use the right door. Respect the line between advice and advertising, build a real account, contribute before you promote, and r/startups rewards you with a high-intent founder audience that trusts the recommendations it eventually sees.
Want help using r/startups the right way? GrowReddit helps early-stage founders build authentic Reddit presence — the right communities, genuine contribution, and promotion that uses each subreddit's sanctioned channels instead of fighting its rules. Schedule a consultation to talk through your plan.
This article was drafted with AI assistance and is pending human editorial review before publication.
