1) Now the lists are prominent feature, pick accounts that specialise and put them in lists. I find it especially useful if I want to keep an eye on stuff that I don't necessarily want to engage everyday. For example, I have a list of conspiracy theorists and misogynist who are quite influential but I can't stand to see their BS all the time. I also have a list of economists that I would like to be able to glance over when there's some developments.
2) Community notes, which was developed as "birdwatch" pre-takeover but never released, is actually super useful.
3) Seeing the number of views is very interesting to have an idea about the reach of something. It's probably very inaccurate considering what constitutes a view but its useful to compare one content to another
4) Removing the headlines of link previews makes you click it before forming an opinion. IMHO headlines are harmful.
5) I love that Musk was exposed as free speech NIMBY. His position is now cemented, can no longer claim being free speech absolutist and be takes seriously.
6) And the Nazi stuff that Evans mentions, IMHO is harmless because it's challenged. I'm much more free speech absolutists than Musk and I don't believe that de-platforming people, making them congregate in specialised platforms helps anybody. They just get crazier and crazier and then shoot people or conspire to do things. It's much better when this happens in open and they BS is called out.
I don't know if Twitter pushes that many nutjobs to everyone or I end up seeing so many because I have a list full of them but I think it's important to be exposed to all kind of trends in the society - even though some of those are extremely unpleasant. Every now and then, they have a point or they are the only ones that address a pain point of concern and can get lot's of supporters when that happen. If you keep eye on these issues you can act before its too late.
And if some those people actually attempt do something harmful, that's the law enforcements job to take care of it.
Maybe it's bad business but it's a better product and I don't see any point of leaving it. A cesspool you don't see doesn't seize existing. An anti-vaxxer trend, for example, will end up effecting you even if you don't have a Twitter account because there are people actively working for it and leaving a platform will simply make their job easier.