Someone should make an extension that cross references account names with ones on the various defederated instances, whenever there's a comment like that, I check Hexbear for their username, and literally every single time I have so far they have an account there too

That particular guy is an OG first wave r/ChapoTrapHouse banning refugee (the reason it exists, its original name was Chapo.Chat), Hexbear account is 4 years old with over 3k comments