I was recently chastised by the mod you speak of for simply hounding one of those gadfly's (the most recent 9-11 one) to try and answer a couple of pertinent questions that he obviously couldn't/wouldn't, and that made his conspiracy theory look a little thin. I didn't realize there was such a conspiracy to protect conspiracy theories, but I'm seeing it now.
I'll go you one better. I was admonished the other day for telling a poster who said he found nothing wrong with the writings of noted white supremacists that this showed his poor judgement.