This is incredibly poor moderation, because you can set username rules to prevent this sort of person from even signing up, like, mastodon.social literally added the feature too. They have no excuse. For any other admins reading, they look like this in your moderation menu on the left, and then here's also what the rule editor looks like. You can even set the matching to "require approval" instead of outright blocking the username...

#mastodon #moderation #instancemoderation #fediadmins