If someone wants to converse with fans on fandom topics (like chatting about who's better for Buffy, or who's better - Spike or Angel etc.), as a fan, and enjoy a total freedom of debate, I'd advice doing it under a different user name, i.e. undercover.

There are legends that Joss posted under different aliases on "Joss' Stakehouse" Yahoo group. But he neither confirmed nor denied it. I think Joss may be lurking on boards beyond Whedonesque and possibly even reads fanfics, but he'll never admit it. :)