As far as I know, his prestige has faded since he was rumored sold his bitcoin, he lost faith by the community, and because of that, he try to increase his name again by creating controversy or news that make his name appear again on the community. He tries to create strife with Mark so his name is back again on top. But still no progress because the people have already grown up and not easily affected again by his words.
Yes, no one hears his words again. because people already know, entrepreneurs have many ways to get a lot of profits.
Musk is always trying to keep the hype around him, it's his strategy to always be on the hearing of the audience. This is not to say that he is losing popularity or something like that, because as soon as he writes something about dogе, this meme coin grows in price.
He is a public person, and loves to put everything on display, if it works for him, then he will continue to do it. I don't know if he's doing it for the money, because he'll probably can't to spend all the money he has in his lifetime, but he's a businessman and it's a process that he enjoys. Such people will always have fans and haters, this is normal.