I'm over on Mastodon. Come say hello.
I tried out Mastodon years ago, but I didn't stick with it. For the last year, I've been looking for a way to host my own 'social notes' and other thoughts (my journal) on my own domain and at the same time that news started to percolate that Twitter was going to charge for the blue check and that it might cost $8 I wondered how much it would cost to self host my own Mastodon service.... Well, about $8 for a low end server.
I'd much rather support and fund a small hosting business with the costs to run the service than paying Twitter.
I'm not quitting Twitter - there's still a lot of people that I learn from that are on there and are unlikely to move. But I'm also happy to participate less in what it's becoming and work where I want to work.
I'm really enjoying the opportunity afforded by self-hosting and participating in a platform being build around open and interoperable specifications.
I'm also enjoying that the Mastodon Web App is a very good PWA.