musk could just buy it. jack already sold twitter to him, and while musk might have comprehended how shitty a deal it was (i mean he tried to back out of the contract and all); he doesn't seem like the guy who would be smart enough to avoid cost sunk fallacy and might want to buy bluesky to keep digging that hole. and jack wouldn't turn him down for a bid on bluesky for the same reason he didn't turn him down before - money.

That's actually not as easy with Bluesky. It's decentralized enough that buying it doesn't help control it that well. The previous owners or someone else could easily go set up another shop and compete using the same network and protocol.

Do I wish Mastodon were coming out on top? Sure. But Bluesky is still a significant improvement.