I think a big part of what "Twitter culture" is it was many things for many people. Some people use as a place for weird shit posting, some use it for porn, some enjoy bias confirmation, some enjoy the drama and beef. I guess some people enjoy anime avatar reply-guys since some of the new offshoots seem to be catering to maximize them.
For me Twitter would have been better if it didn't have any of that but I get that using it as basically a shitty, short-form substack isn't the most popular usecase. So what I liked about "twitter culture" is that all of these things could co-exist on one site and just curating who you followed could dramatically change that experience.
With a lot of the current drama some of the more serious people are leaving. I'm not sure how it will all shake out in the end, but I don't expect my use case to stay intact.
In the meantime, Twitter is still running and will continue to soar triumphantly in a straight line on autopilot, until its fuel runs dry and its wreckage comes to a gentle landing at the bottom of a deep dark abyss.
Twitter allows me to keep up with Technologists, comedians, journalists in one location which has made it very useful to me. That made Twitter sticky for me personally.
Unfortunately, Elon has probably pissed off enough people that I'm going to have to branch out to other services anyway so that immediately reduces the value of Twitter.