Re: 5x09 Cold Blood (Grading/Discussion) SPOILERS!!!
Because people like speculating.
My point was that since Who came back we haven't seen this sort of internal conflict among the monsters of the week. You've certainly never seen Sontaran, Cybermen, or even Krillitane debating whether what they're doing is right. I mean hell, just having an alien species who isn't totally evil is unusual in iitself.
You do have a point there, and I give the original idea points for that.
And the sign said, "Long haired freaky people need not apply..."