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Self-promotion rules · r/ycombinator · read 15 Oct 2026

Does r/ycombinator allow self-promotion?

Short answer: posting about your product is closed, and commenting in threads is open. Its rules name one place for your own work: the megathreads.

Posting about your product

Closed

A flat ban; feedback requests have their own megathreads, which the page names separately.

From the room's own rules

Commenting in threads

Open

The room does not restrict who can comment, so answering a question in a thread is open to you.

From the room's own comment setting

Rules quoted from a public mirror's copy, captured 21 Jan 2025 and read by us on 15 Oct 2026. Rules can change after a copy is taken, so check the live rules page before you post.

What r/ycombinator's own rules say

Every line below is the room's own sentence, word for word, including its spelling. We pick the sentences about promotion, links and who may post; we never shorten one.

  • Read the stickied post at the top of the sub.
    From its rules list
  • Use the megathreads for requests for feedback and the current application cycle discussions.
    From its rules list
  • No self promotion.
    From its rules list

What to do instead

  1. Use the megathreads the room's own rules name, and keep to what that thread is for.
  2. Do not post about your product here. A removed post can cost the account, not just the post.
  3. Answer questions instead of announcing. When we counted, 3 questions here had no reply at all.
  4. Read the live rules page before you post. The rules can change after the copy we quote was taken.

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What people ask in r/ycombinator

Counted from the room's last 30 posts, read 1 Sept 2026. A question is the opening a comment can answer.

30posts counted
27%are someone asking (8)
3questions with no reply yet

Questions

Does r/ycombinator allow self-promotion?
Posting: closed. Commenting: open. A flat ban; feedback requests have their own megathreads, which the page names separately. The room does not restrict who can comment, so answering a question in a thread is open to you. Use the megathreads the room's own rules name, and keep to what that thread is for.
Can I comment about my product in r/ycombinator?
Open. The room does not restrict who can comment, so answering a question in a thread is open to you. Mention what you sell only when it answers the question someone asked, and say it is yours.
Does r/ycombinator have a self-promotion thread?
Yes. Its rules name the megathreads. Keep to what that thread is for.

How this page was made

The rules come from the arctic-shift public mirror's copy of the room's rules list, sidebar and posting guidelines. We do not use the Reddit API. The posting answer rests on the room's own words when they say anything about promotion, then on removals we counted, then on our inference, and the line under each answer says which. A rule that was rewritten after the mirror's copy was taken will not show here, which is why the capture date is printed above.

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