Indeed. It's easy enough to back up your posts/threads/comments with "save page as" on each page of your profile, but you can't automatically transfer your followers, following, subscriptions, or moderated in a migration. You'd have to ask to be re-added as a moderator, have to contact your followers individually, have to add your subscriptions and following one by one to your new account... Has anybody made any sort of third-party tool to make migration easier?