BNF

BNF = Big Name Fan 

Refers to a fan (usually an author or other prominent contributor to the fandom) who has become so well known within the fandom that they have gained power over it. Unfortunately, most BNFs tend to go inevitably mad with that power, and insanity and wank are not uncommon surrounding them. It is indeed possible for some BNFs to be quite nice and laid-back, even using their power for the greater good, but it is dishearteningly rare.