I found another one that annoys me. The constant misuse and/or misunderstanding of the word fetish. If you want to read werewolf/twincest/Harry Potter fanfic, it is not your fetish unless you can not perform sexually without the aforementioned fanfic in the room with you. It's just what you like to read, not a fetish. I do not think it means what you think it means fangirls.