I'm an SME in a couple areas of business, but believe me there are many more who are superior experts regarding Doctor Who than I am. I just enjoy the show and listen to a podcast or two. The folks who post on the DocBacks at the Ain't it Cool News site and over at Tardis Newsroom, are true experts.
I'm a fan of the show, but as far as being a fanatic well I'm only fanatical in regards to the dude who's my avatar. I probably should change my username to something that's not my actual nickname, but I really don't care. Hey, is it my fault that there's no football to discuss right now? LOL! I like Doctor Who now, Doctor Who is cool.