Like the Isaacson 'great man' exegesis, Yaccarino tweets are an example of a conventional form of discourse (here, corporate happy-talk) being undermined/demolished by its subject https://defector.com/linda-yaccarino-is-the-last-funny-twitter-bit-left
Indicating how Musk is transgressing the rules/expectations of "great men" (by not being so great in various ways), of the establishment media, of corporate image-making, and of basic "let's make a profit" business economics – all of which are nice to see attacked, but the entertainment value alone is clearly not worth the price