> [Twitter] are going to be purposefully and continuously ejecting users. As long as the users are people who nobody wanted to listen to anyway then that is fine. > But the situation changes because sooner or later (potentially already happened) Twitter will eject actual community leaders and a community will need to reform somewhere else.

You're saying this as if it's inevitable. It's not. The incentives are aligned to keep all reputable "community leaders" on the platform. If you're concerned about how a market driven organization judges reputability, well, (a) that's a different conversation, and (b) check to see who you're aligned with.