You know, I've been turning it over in my head for while. I'm of a similar mind.

Mason may know a whole lot – but he commands none of the respect I feel for the other names associated with YC. He's an antibrand. Maybe someone can someday make a compelling case for why Groupon isn't a completely scummy greater fool play. But all the sane, non-frothy things I've read about it make that a tough mountain to scale.