Crucially, users also retain the ability to migrate to different servers without losing their followers, which is a stark contrast to traditional platforms, where leaving means starting over and building up a following from scratch. This is a particularly crucial feature for influencers and content creators, who were recently faced with losing millions of followers during the recent TikTok blackout.
Is this actually implemented anywhere?
Mastodon does this fairly well.
I know modern versions of Lemmy have a way to import/export account settings, but I don’t think it’s a full-scale move all your followers thing.
Well, on Lemmy you don’t follow users anyway