Well evolutionists do the same exact thing. If they don't want to hear what a creationist has to say they just say that it's a lie or they through out a big fat PRATT.
I suppose you have some examples of this? I'd be interested to see a creationist propose either an argument in favor of creationism or against evolution that doesn't consist of misunderstandings, misrepresentations, infantile caracatures of evolution, or PRATTs of one form or another.