@saphire but basically we're calling anything and everything a misskey fork. this is also playing on the fact that there are a lot of actual misskey forks. I don't know why, but forking misskey is very popular for some reason. just off the top of my head I know iceshrimp, firefish and sharkey.
it's also in the format of the "featherless biped" meme (the checklist of attributes and then coming to the conclusion that "THIS IS A MAN")