Which tweets?
Elon Musk is a funny person sometimes. Some of his tweets are purely just for fun or meme purposes, some may sarcastic.
Even how Elon Musk will make some tweets in the future, people will start to adopt it, people will learn and start to treat it normal, one example is the FUD spreading on random news articles or sources a few years ago.
Yeah, he is funny. He just posts jokes/memes on Twitter but people react to it like it's the message from god. That's the real problem but as I see, people are slowly adapting on it. I think they hear proposals from friends like: Hey, this man just jokes and have fun with it, why do you seriously follow him.
On last tweet about dogecoin where the flag of doge was on the moon and his statement was: Doge on the moon, actually <-- I thought that dogecoin would skyrocket again or at least have 50% and more rise but seems nothing significant, price went a little bit higher despite the fact that BTC was falling (just some percentages) and then went down again, so, his tweets are losing value on every following attempt.