Of course, I'm known in my circle of Fannish friends, and the filkers know me as the Kosher Con Suite Person, and I wrote this essay about keeping the Sabbath at conventions. But that was because someone else, with a *much* bigger name, had been asked originally, and she passed it on to me because I'm more observant at the moment. *She* runs conventions and departments, and is generally known through out fandom, and when she goes to cons, she's on panels because people will say, "Oh. She's on a panel. We need to go to that." And that's what makes a BNF to me.
This is not to say the that the people called such on LJ aren't - while the processes may be different, the result is the same : a BNF is someone whose name is generally known throughout their fandom, whether it be as a writer or an editor or an archivist. Or an artist.