Your followers migrate, but your posts and any interactions on them don't. And for good reason, of course! But I do understand where the author is coming from:

Your followers migrate, but your posts and any interactions on them don't. And for good reason, of course! But I do understand where the author is coming from: if you've put in a lot of effort in your posts thus-far, it does still feel like leaving a lot behind when you switch servers. Your post history is much more of your identity on social media than your followers are.