I'm a fan of some of Twitter's newer developments like community notes, private groups, and spaces.

Quote posts are a feature I'd think long and hard about copying, though. At least in my subjective experience, they made the platform a nastier than it had been before.

Yet there's nothing stopping you from making a screenshot of a post and linking to the original post, with commentary. Just saves a step, I suppose.

Agreed. It's just decreasing the friction, which increases the velocity.

Personally I want a filter that blocks out 'screenshots' and other 'images with text in them' because these are frequently part of hateful memes.

(Organic pictures of a book cover or a sign that somebody built in the physical world don't bother me so much but could be faked pretty easily in this post-modern age so I might accept filtering those out too)