[ripperdoc]

Seems nice! I would prefer a twist of this more towards finding other's with an expertise you don't have yourself and having the option to center the conversation around a particular topic, and some expectation of sharing advice and expertise (not just chatting).

There could be a paid model, or you could imagine a credit system where you also offer your own expertise and time to others in equal measure. That could still lead to finding things to work together on, but could also lead to learning, consulting gigs or just networking - with the added benefit of being immediately useful at work. But that maybe already exists somewhere?