He's drained billions from the company. Not unlike trump, he structures his business so that he always wins. He can purchase as many shares of Tesla as he wants, at any price he concocts. He's last in, first out when it comes to the stock. If it tanks, he gets paid first. trump was allowed to funnel cash out of his casinos at any time he wished, leaving investors with the losses.
I'm sure in both cases, people were investing in the name and the cooked books. If they read the fine print, they would never invest.
Tesla is basically Twitter's bank right now. For those who bought it cheap, they can still get out with a profit. Everyone else is stuck right now as it continues to lose value.