Some people will call this man a liar, but I think it would still be wiser to use the term manipulator. He has made a lot of money because it has attracted the attention of a lot of people who have no idea what Bitcoin is, pumping their dreams to unprecedented heights without any real basis. Then he started a costly charged announcement on his Twiter because it literally became popular overnight. On his statement of $1 million per BTC, he actually promoted a whole bunch of shitcoins - why are you wondering now that he turned the saw upside down.
While some wonder why he calls Bitcoin shitcoin, the reason is that he wants to get as much attention as possible again, this time with a completely reverse tactic.