No way. Elon has, for a long time, relied heavily on Twitter to drum up interest. He basically has no advertising budget at Tesla and SpaceX. My guess is that he saw his lack of control of Twitter as a liability. after all, things he or others have posted have increased or decreased the stock price of Tesla by billions. not to mention that if he owns the platform, he can juice his own posts which he started doing immediately. so I think it was that mixed with some ego and stupidity and impulsivity and maybe some drugs mixed in there.