Elon Musk won't sell his bitcoins, he tweeted this and we see no big movement in the market. There was a time when his tweets had big effects on the market. This guy is losing his value by promoting Dogecoin.
Yeah, he won't sell his Bitcoin or his shitcoins, who cares. I think that in this forum we don't really care what he says, although it must be recognized that he has a short-term influence on the markets.
Well, in principle I would agree with you. But you shouldn't forget that Musk now has a certain influence on prices. He has a large following who hang on his every word. If Elon says he's investing in coin X, then that coin will certainly see an increase. Therefore, his tweets are meaningful, whether you like him (or its behavior) or not.