There's always a tweet.
Guess I'm here now.
I've been extremely online for the last 30 years, give or take. I've had one governing theory through that time: the site owner makes the site's rules, and if I don't like it, I leave.
I don't expect Twitter's "no linking to Mastodon, Post, whatever" policy to really stick. But it's now clear that Twitter is being run at the whims of a demented pissbaby. That's not for me. I'm keeping that account, and may ping something there enough to preserve it.
But I'll be preserving it against the hope that someone who isn't Musk acquires it before it dies entirely. Nothing more.