I think it was a forced buyout on Musk’s part, so Jack Dorsey didn’t really have a say in it (beyond listing it on the stock market which… Eh, I guess you could blame him for that). According to wikipedia, he doesn’t seem to own any part of it now.
But anyway, it’s federated so I guess that should limit the damage done by any shenanigans.
Hey, you should be careful around Ubuntu fans. They might just snap.