Best, some Atheists are guilty of the same. It doesn't matter your system of belief or non-belief, your intent and motivation in a discussion will determine the result...and even then, it is dependent on others involved in the discussion sharing the same intent and motivation. Is your intent mutual understanding or condemnation; and what is the intent of those with whom you converse? Do you set yourself above or see the person with whom you are speaking as an equal? I rarely run across someone who is fair and open-minded anymore. I hope that I am, but sometimes I fail at that, too.
You are right in this. It isn't what "sides" people are on that determines the progress or outcome of a discussion or negotiation. I would say that if negotiators went into discussions backed by governments who sent them to be seriously bent on being fair and working for compromise and the interests of all concerned, we wouldn't have many wars, and the same goes for the Religion Forum.