Aside from downloading my archive and subscribing to a bunch of people's email newsletters, I'm treating twitter like it's going to survive and keep some of its positive features. I'm not paying too much attention to the impending doom posts, although I worry about the health of the H1B visa people. I roll my eyes a bit at the people who stomped out of twitter with great indignation and keep popping back in to wheedle people to join them on Mastodon (which a surprising number of people can't spell properly). I don't think you are in that category, so it's interesting to see your view, but as a chalky white person who has followed a lot of Black twitter for years, it's hard to imagine it being replicated on Mastodon. I can see how the medieval manuscripts silo might manage, though.