He doesn't just write mean tweets. He broadcasts to an audience of 90 million people that a cave diver who was critical of him (correctly so, as it turned out) is a pedophile. He attempts to get a lawyer fired from a firm working with his companies because she happened to work at SEC on enforcement cases related to his companies. None of this is news to you, which is why I'm wondering why you would be so glib.
Heck, narcissism is currency in Silicon Valley. I don’t know what else I’d call the whole “we’re changing the world through Ad Tech” shtick.