Exterminate! EXTERMINATE!

Sorry, I just couldn't resist. For the people that aren't familiar with Dr. Who, the Daleks ran around shouting this all the time.

And to stay on topic, don't paranoids typically incorporate things they find in their surroundings into their delusion, strengthening their personal beliefs about the world? Perhaps all hoax believers have a mild (or in some cases extreme) form of this psychosis. Sounds good, but I'm no psychologist (unless machines can think; sometimes I wonder).