Ask HN: Have you worked or collaborated with anyone from HackerNews?

Have you ever worked or collaborated with someone from here, whether you found them through the official "Who is hiring / Who wants to be hired" threads, "What are you working on?", "Show HN", or other general discussion threads?

How did the collaboration go? How long did it last, how satisfied were you with the experience, and did you make any valuable connections that you might collaborate with again in the future?

Based on those experiences, what kind of impression have you formed of the HackerNews community? What types of developers and entrepreneurs seem to be the most common on HN?