Yes, he is such a crazy guy which many new investors entered in crypto market due to the announcement made by the Elon, we don't know which coin he is going to select and how far the price will increase nobody doesn't have any idea, so we need to prepare for everything.
No, he is smart, he understand the potential and the nature of crypto, he is just using his influence to make profit from it, that's not crazy, you call it a smart move. Investing here is just like a game, if you know how to play the game, you will succeed.
Let's hope that he will tweet good things on PundiX, it might help this coin pump.