I listened to an interview of Musk, and I liked some of the things he wanted to do. First off, he wanted to make Twitter's content moderation algorithm, and boosting/depressing algorithms open source. That way everyone gets to see behind the curtain and know exactly how the sausage is being made. I'm sure that alone has many people at Twitter freaking out. I think the degree to which censorship has been taking place goes far beyond what many could even imagine.
And it also threatens to expose any private-public partnering that's been going on between Twitter and the government. Would love to see all those emails get leaked showing government officials telling Twitter what they want to be quashed, and then Twitter going along and doing it. Could be extremely ugly. Pravda would be jealous.