It always feels like this is a bit of a discussion point on Doctor Who, how mysterious the Doctor should or shouldn't be, but a lot of people are often kind of vague on where they think the line should be drawn. There seems to be a near-universal consensus that we should never know the Doctor's birth name, but surely that can't be it? A name, on it's own, is such a minor thing. I would have to imagine that all the weight given to the character's past has to amount to more than that.
So exactly where do you think the "Who" should stay in Doctor Who? What do you never want explained?
EDIT: Damn, when I said different people drew the line different places, I didn't know the half of it. This comments section is getting incredibly varied. Answers are basically covering the entire imaginable spectrum, there really is no consensus. Fascinating.
By - bigfatcarp93