Expect to get followed by people you are already following as a #MastoMigration is occurring from #MastodonLol, an instance of +18,000 users, to other instances, in advance of it shutting down.

If notifications are turned on, you will get notified you have a new follower but it's really not. It's just someone you already follow with a moved #Mastodon account. It all is done behind the scenes.