mastodon psa
If you have an account named xvilo and an account named realDonaldTrump on your instance, they're a person going around and registering those usernames on every single instance they can find.
I would suggest deleting their account if you're an admin or just reporting them if you're a user as they're not going to use the instance, they're just going to camp their name.
mastodon psa
@boots Yah, that won't free up the username for use by a legitimate party, though.