People will follow people—we've already seen that with the tech community and Mastodon. Within niches like the iOS dev community, virtually everyone has jumped

People will follow people—we've already seen that with the tech community and Mastodon. Within niches like the iOS dev community, virtually everyone has jumped from Twitter to Mastodon. If a good centralized alternative comes along, other communities may jump to that. But so far, there are no centralized contenders on the Twitter front.