Little tip for Masto mods and admins:

Look for typical 'spam' accounts that often use a business profile pic, links to websites and socials, they don't post but only sitting there for SEO backlinks

Often it's Vietnamese accounts with a long user- and displayname. Check the IP to see if 2 or more accounts belong to it and suspend the IP. (I often find over 40+ accounts per such IP) but only if there are more than 1 such accounts per IP, it could be a VPN

I refuse to pay for these spam accounts