@FeartnTired Mastodon is another piece of software, like Soapbox (which Spinster uses) that lets you use Fedi. In my examples, Masto is more like Gab/Truth than like Bluesky (which is more like Nostr: have you seen the people with long strings of random characters as usernames? That’s Nostr people).
(With Soapbox, too, whoever runs the server decides. It’s just that we’re on an instance where the mods decided — generally — not to do anything and treat us like adults.)
I don’t know enough about Bluesky to say if it will be more mods and block lists or open and free speech, but yes, I suspect the former.