The person known as “Linux is Best” (or “Linux and BSD are Best”) maintains a list of suspected scammers on the Fediverse. https://gitflic.ru/project/fediverse-express/fediverse/blob?file=block_spam_scam_users.csv&branch=main&mode=code
However, @ricci recently asked https://discuss.systems/@ricci/117380019991499238 about the methodology of the list, and for this he was added to the list.
Similarly, Linux is Best was recently banned from https://catodon.rocks following an argument with the admin @panos https://catodon.rocks/notes/ar6v0c9uuhwr04vh and subsequently added said admin to the list. https://gitflic.ru/project/fediverse-express/fediverse/commit/0700ac4e530b66e18d787a07843eb6bd5816b92a