I'm wondering is there a monthly or periodically post on HN where we could actually learn about other people's ideas or people who are just in development phase or maybe just researching and are looking for co-founders.
I'm wondering what everyone thinks.
It's not totally clear to me if OP is referring to that product specifically or something else, but I figured I would take the opportunity to get feedback anyway!
We are very actively working on the co-founder matching site and would love to hear from people who have used it - what your experience was and how we could make it better.
We've been running the site for about two years now, since we launched it here: https://news.ycombinator.com/item?id=27750298. Coincidentally, the idea actually grew out of open threads just like the ones OP suggested. We started by experimenting with those threads on HN and our Startup School forum, but nobody ever found an actual co-founder that way.
So we decided to build it as an actual product. Since we launched, over 20 teams that met on the site have gotten funded by YC, and many of them are doing quite well. So we think the early results are overall promising.
That said, co-founder matching is a very hard problem. It's a multi-sided marketplace with complex dynamics, and we know we have a lot of work to do to make it work for everyone. We'd love your feedback if you've tried it.