I am not too concerned about Twitter keeping content b/c in the wall/river model of showing posts the past is irrelevant, even to the point that if a user wants to save a post for future reference/accountability a screenshot is far more effective than say scrolling down forever and find it (if it wasn't deleted). In other words: Twitter is more like a news channel not a blog.

Wanna fix Twitter? Fix trolls. It is far too obvious for the real users to spot when trolls are pushing a trend or flamming. Why can't Twitter setup some AI to mitigate troll activity? Same thing with big bucks pushing dubious campaigns a la Trump.

Two features that will make it better user experience: bookmark a tweet and add subjects/tags to tweets or accounts so users can have multiple streams well classified by subjects. Having a shampoo of content in chrono order forces scroll down to the point where one left last time.

However, all these fixes would make Twitter less profitable. So, nevermind.