Honestly this is so rigged, we need an global agency to go and fight against such actions. First Elon Musk buys a lot of Bitcoins when they are cheap, then he goes and promotes them on Twitter to get the price to rise. Once the price rises he is just selling his coins with a nice profit. After that he is just stop promoting BTCs and saying that Tesla won't accept BTC anymore. I wouldn't be surprised if he starts to buy coins again when the price is down to 30,000 or 20,000 USD.
A businessman is a businessman, he always wanted to get the job done no matter what the process is. This time Elon possibly wanted to re-enter the Bitcoin Market so he have to do something that will crumble Bitcoin price growth and make it dip for him to buy at a discount. I wonder what his next move to crash the price of Bitcoin.