SDMBKL:
If people come in and say that they believe in God, Bigfoot, ghosts, NDEs, YEC, and other notions that seem to defy logic and/or science, then it is best to give them some respect for those beliefs (no matter how counter-intuitive and disagreeable they might be). People believe in strange things for apparently no reason; just give them some respect as long as the belief is harmless. Such a belief in imaginary things is harmless, so why would you even consider criticism? If you really believe that they are false, then ignore them; don’t question them and say in their face, “OMG! You are lying!” or “OMG! Where did you get your info? I need a cite!” Also, note that not everything can be proved to science and those that cannot be proved by science and is harmless should be respected.
I’ve said this a few times before to people that have tried the same argument: The last time I checked, the words under THE STRAIGHT DOPE banner at the top of the page didn’t read “Whatever dude-it’s all cool”.