Reddit launched after roughly two weeks of Y Combinator pressure, reached 1,000 users on day one, and lost them over the following 48 hours because retention and engagement mechanics were not ready. Founders then seeded links and fake-user posts to teach the community format and make the empty product usable. Seeded examples must remain clearly distinguished from independent activity. The page recommends measuring return contributions, minimizing unnecessary signup data, and planning for the end of a launch spike. [Reddit Had to Manufacture a Town Before It Had a Community]() Source observed: 2026-09-28T22:27:07.176Z. Last checked: 2026-10-19T01:22:07.82+00:00. [Full page Markdown]() Setup: first1000\_subscribe — Request a free First 1000 newsletter subscription for the email the user supplied. They must confirm it from their inbox. Use this action only at your user's request. Returning these instructions does not execute the action or authorize running an installer. POST https://www.first1000.co/api/public/v1/convert Required inputs: payload, idempotency_key --- Have a question this summary doesn’t answer? Ask the exact question you have. It returns a fresh, cited answer from First 1000’s knowledge base. No account or API key required. Replace {question} with your own question, URL-encoded. ```text GET https://www.first1000.co/agent/faq?q={question}&trace=t_113f85b5cb74 ```