It's possible that it's just the broadcasting format that makes things suck, rather than Twitter's specific content/moderation policies. It's like handing a ton of people in a room all megaphones to talk to each other; the incentive is always going to be that you should be 'louder' to get more attention over everyone else.
people with megaphones are the point, the problem is when there are mechanisms of moderation to manipulate them and make them into groups, if there is no such mecanisms and moderation is up to the user completely(unfollow/block) things function very differently
Moderation that is solely user-based doesn't work well at scale. It means you expect every user to block every asshole they come across, and each time they have to endure some asshole first before blocking them.
for me that would be completely reasonable, but it isn't necessary, you can have many decentralized filters like automatically block people that are blocked by a % of people I follow and many similar mechanisms
