"Who are the Fandoms? They’re online royalty. That one there? That’s Supernatural. They’re one of the weirdest fandoms … And that little one? That’s Sherlock … That’s why their fanon’s so big. It’s full of deductions. And fanaticism takes a virtual form in Doctor Who ... Doctor Who; how do I even begin to explain Doctor Who?” Click through for full and awesome quote
I am actually okay with that interpretation of the show. Like, Dean teaches Mythology and Folklore at a Uni and Cas is a Doctor (he uses his angel powers to diagnose and then just asks for the tests so his colleges don't get suspicious) but they do go hunting together too... I think I have created a fanfiction now... *Sweats* now I'm gonna have to write it.