Indeed, one of my prep bartenders is an avid gamer and walked me through a couple of those videos yesterday over the lunch hour.
The broader lesson is one that so many fringe claimants here either learn the hard way or fail altogether to learn: it really is possible for people to tell that you're bluffing. We just got done over at ApolloHoax.net answering our first conspiracy theorist in what seemed like years. As often happens in that genre, the claimant came to the table with all kinds of claims to expertise and inherent knowledge that he was ultimately unable to substantiate, and so got his head handed to him by the very competent regulars there. It never fails to amuse me just how many people really think they can B.S. their way along indefinitely.
Elon Musk seems to have honed his B.S. to the point where it has earned him quite a lot of wealth (if only on paper) and quite a lot of undeserved credibility. But despite any legitimate skill or knowledge he might have, he shares an annoying trait with the run-of-the-mill conspiracy theorists who all imagine themselves to be galaxy-brained geniuses, and who generally stay inside their echo chambers. It's one thing when he's harmlessly claiming personal credit for everything that SpaceX and Tesla have done. The SpaceX people I know just sort of laugh, shake their heads, and then go back to work doing exciting things. I've read that these companies have what amount to fidget-spinner employees whose main job is to keep Musk busy and prevent him from meddling in any of the important bits.
What scares me on the other hand is Musk the Chronic Liar being given power in situations where "Move fast and break things" has consequences more grave and far-reaching that just driving X/Twitter into the ground and moving on. The vibe in Silicon Valley in the 90s (and I was there to experience it) was basically if you flew your company into the mountain, you could have another one up and running inside a month and your finances wouldn't even feel a speed bump. Giving him power in the U.S. government to enact changes that have the equivalent consequences of perma-death in a game—only with the lives of hundreds of millions of Americans—is to me an incredibly foolish thing to do.
There's a chapter in the book Coders that examines the tech-bro approach to sociology and government (including the rise of social media) and concludes that these people should be kept as far as possible away from unchecked power.