I think if someone created Twitter for journalists, pundits, wonks, and politicians -ONLY- maybe it would be a place to go? Like something that requires a journalism credential, or a TV host, or an actually office holder title. Sure there'd be crazies, but at least there'd be a source for hot takes.
Twitter could still exist for "citizen journalism", but the two wouldn't mix as heavily.
I was thinking about this a bit and I think the real value is Twitter is the random chance that $FAMOUS_PERSON might notice one of your tweets etc (Eg “Elon retweeted my hot take”)
If you take that away does that remove the essence of the site?
Instead of banning accounts he will just make them second class citizens.
I remember when the only social network was MySpace and then it wasn’t.
And Friendster.