iirc it costs twitter a lot of money via computing resources when you block a lot of people (this also explains why musk randomly goes on anti blocking as a concept periods, because he doesn't care ideologically, it just is expensive) so blocking a few tens of thousand people, and installing a good adblocker might make you a net negative source of cash for twitter. Not that I think it is going well with the massive amount of bots on there (including a big amount of them verified, im amazed the site is still going on).