Yahoo Answers dead, Quora dying, StackExchange struggling with AI spam and mod rebellions. Meanwhile [Ask MetaFilter](https://ask.metafilter.com/) just turned 20 and keeps on trucking. Smaller scale obviously (human-scale, I'd say), but untroubled by the exploitation and greed of the bigger sites, and still delivering best answers to questions every day. Hopefully more of the internet shifts back to this communitarian model as the pitfalls of the big VC-driven platforms become more apparent.