PSA for small server admins. Spam bots are searching you out and creating accounts for spamming the fediverse.

Other admins are dealing with this by mass defederation of contaminated instances.

If you admin a small server, ensure that you have open registration turned OFF. If not, you may find yourself getting widely blocked.

I get that vetting registrations is work, but if you allow other people on your server, then this is part of what you need to do to be a good citizen.