Hm, not sure would qualify as insider trading. More like manipulation, dunno. Tesla has the right to accept whatever method of payment they deem appropriate, so not sure what angle they may have here on him.
The same thing happened/happens with penny stocks.
- first take a financial position
- then spread a story
- close your postion with big profit
- let the pennystock crash again
- go back to start and do it over again
- He did it when Tesla was in trouble by posting "funding secured"
- He did it again with BTC
- He did it again with Dogecoin
Insidertrading is manipulation.