Regular people will just stop using it. They'll stick to the sources they already have and gradually become passive recipients rather than contributors.
The likes of journalists and celebs will still maintain a presence because it's necessary for them, but small users will ultimate walk away as it becomes an arena for those who can shout the loudest.
Farron Cousins recently posted a video where he suggest that, although Musk has a very Republican outlook on rich people paying taxes, and receiving public subsidies whilst wanting to deny them to others, that he himself is more contrarian in his politics and just enjoys opposing for the sake of opposing. He thinks it's cool and trendy.
I don't know if that's an accurate assessment, but I am reminded of those autistic people who get into hacking and the like. People who are generally loners, can focus in on something very specific, and like to test themselves and push boundaries. In any case, twitter was never worth what he paid for it, and it will be worth even less by this time next year.
