Big Name Fan

A Big Name Fan, commonly called a BNF, is a member of a particular group in fandom whose work, or knowledge about the fandom in question, is very well known.

Commonly, Big Name Fans might start off a popular Fanon idea, be a pillar of stability, and so forth.

Examples of BNFs

 * Cassandra Claire- Cassy Claire started off many fanon ideas about Draco Malfoy, or at least popularized them.