I've been taught to use the terms the "discourse community" is using. It's easier for this Scary Pony Oh No than trying to start from scratch.

As for the basic assumptions, I would guess generally Scary Ponies Oh No are fans of their preferred "text" first and socialization in fandom comes afterward in contrast to Pretty Princess Monsters Blargh who are attracted to the social organization of fandom first and then choose their preferred fannish "text".