Yeah I'm not sure what happened but Reddit in particular is beyond saving, and I'm not saying it was ever great. I think we simply don't know how to create online communities that make any sense yet. I'd rather have second hand smoke than any more algorithmic "engagement" maximization at this point.
I feel like we're probably going to have to give up something, most probably anonymity, to get back to anything like sanity. We'll see communities that are militantly anti-AI where it's hard to get in and easy to get kicked out, and it will probably cost money and require you to divulge who you really are. It could still be semi-anonymous at the user level but not at the administrative level.
I'd like to see something like that take off, because I'd be willing to give it a try. I also think the communities should be limited. Maybe have several sizes and see how it plays. Something that never grows beyond 250. Never past 1000. Something along those lines.
Relatedly, I'm just about on board with the idea of a modern day Compuserve or Prodigy. Pay to play, but in return you get no ads, no malware, no algorithms, no AI. A gated community for the Internet.