Why is Alan Moore, "The Mad Rapper," of the Comic Book Industry?

Maximus Rex

Every time I read an interview with this ? , he's always ? ' or hatin' on something, but like that chick on the "Life After Death," skit, I have to ask, why is this ? so mad? Who or what caused this muthafucka to become so ? after that he never has a positive thing to say? I was on the Jim Lee in-store line and the dude told me he was so ? about The Watchmen, that he gave all of the royalties to David Gibbons. Plus I already knew that he didn't want his name on the credits.