People follow him because he is the biggest man in cryptocurrency What he says happens. Is one of the people and when he speaks it is clear and easy.
He is a successful man in cryptocurrency The coin he talks about gets his price up. a few days ago he tweeted about dogecoin and check his price where are you. I think that's why people follow Elon Musk.
Elon Musk bought the first bitcoins in 2013, he himself told about it. It turns out that he became the richest man on earth thanks to cryptocurrency, not Tesla (by the way, he continues to grow rich thanks to his signals on cryptocurrency). From this we can conclude that everyone is simply obliged to follow one of the main whales of the cryptocurrency market!