Would you like ketchup or mustard on this Very Important Boot?
On a more serious note, AFAIK (IANAL) Elon and other celebs are public persons who don't necessarily have the same kind of expectation of privacy since they've chosen to be in the public eye.
Meaning unless it's something protected by law like medical records or something done/talked about on their private property out of the public's view they can reasonably expect the public will know/talk about whatever they do.
It's like saying why don't I spy on you wherever you go, almost like the creepy stalker in Hollywood who terrorizes celebrities and don't respect privacy.
Private jets don't get privacy by FAA rules. If anybody has an issue with that, they can either take it up with FAA or stop using a private jet. Banning an account on Twitter isn't doing anything.