“Am I supposed to know who Joss Whedon is?”
He may not matter much to forum members on a personal level, but knowing a few details might come in useful later, for self-defense.
He’s a writer/director/producer, of films (a couple of the Marvel Avengers films) and TV (Buffy the Vampire Slayer, Angel). Activists laud him as someone who has transformed the female superhero genre. One of the younger powers in the entertainment business, he wields enormous clout but got there without any perceptible character development - which makes him a lot like the newer billionaires who have made it big in digital hardware and software, and the entrepreneurs of Silicon Valley.
Here's one of his Web works...
I only watch it because I have an old-gamer guy crush on Felicia Day. :)