> The right is gleeful. What the left is angry and the right is gleeful about is the idea that Musk is a “free speech absolutist” and might unban Donald Trump and other right wing / fascist media personalities.
I think this represents what's really going on. Firstly, Musk is not a "free speech absolutist". The issue is moderation policies. Every single platform moderates. Even 4chan. Any platform that doesn't, gets overrun by spam. If not spam, then by bots, or trolls, or something else that makes normal conversations impossible. Moderation is about sign-to-noise ratios. Everybody, both left and right, wants a good signal-to-noise ratio, but they disagree about what they consider signal and what they consider noise.
The problem with Musk's takeover is that he sounds like he doesn't have the first clue about how moderation works and what all the concerns are. The things he says about Twitter keep contradicting each other. It undermines a lot of people's faith in his leadership, and therefore the future direction of Twitter.
And that's the attraction of the fediverse: it offers real freedom of speech, and you get more control over moderation. Everybody wins.
> Trump would be truly unbannable. He would run his own instance
He already does that. Truth Social is Mastodon. So is Gab. It's just that Truth Social blocks every other instance, and everybody blocks Gab.