P.P.S.:
After the AMA on Feb 26 the planned three lane model (Q&A, discussions, chats) with various content including war stories and jokes (I don't make that up, just quoting) was presented. It seems to be a combination of different content types and a social network. Basically the only way to attract people is thought to be becoming a social network, it seems. This might work out, after all the popularity of the big social networks is so far largely unaffected by AI (or not?). Although I personally wouldn't feel very attracted to it. This is the moment I can proudly refer to my earlier question about exactly that, which got heavily downvoted (if you never experienced that you haven't tried hard enough). I was 5 years ahead of the time.