Voting Conspiracy on Amazon.com?

I was surfing the web for reviews of David Aikman's newer book called The Delusion of Disbelief and came upon this forum where it seems that some christians were conspiring to flood negative reviews with "unhelpful" votes.I had posted my review of it a few months after all this was posted and I wonder if the large number of "unhelpful" votes for my review have been due to christians disliking the