People throw around the word too much, there are actual Nazis around and we need to reserve the term just for their special brand of evil. Otherwise the phrase gets so watered down as to essentially become meaningless.
Otherwise they are just rightwing dipshits.
Yeah, Lemmy has address to this by just having an incredibly glitchy algorithm (look at this post with five up votes from four months ago, it deserves to be on the front page). No one can game it because no one understands it.