Thinking about the New Atheism, I think it really doesn't attempt to argue against religious belief. The point isn't debate, it's marginalization. It's keeping religious believers off the "adult table," as Boghossian likes to say. Treating it as argumentation, I think is a mistake. I have complained about the underlying attitude. I think it is socially dangerous. But I think my complaints are pointless, in a way.
Polite respectful dialogues isn't just to be nice. People naturally tend to represent positions they don't like poorly. When we have the enterprise of defending our own positions, yes we like our positions and we like seeing people embracing them. But we also have to commit ourselves to the health of the community of dialogue. If I were to have a public debate with someone on belief in God, I would feel as if we are opponents in one sense, but we also have a cooperative goal of enhancing understanding of the issues at stake. Without a sense of this common goal, discussion inevitably degenerates.
The latest crop of anti-theists aren't saying Christianity or theism is wrong, they are trying to get across the idea that it is not even wrong. I don't know how I would construe the rules of dialogue for dealing with something you consider to be not even wrong. Normal dialogue is aimed at showing that something is wrong, and gives a certain respect to the opposing view in order to refute it.
I still hate banning people, but I think that if you think you have nothing to learn about questions surrounding religious belief and other philosophical matters, I will just say that Dangerous Idea is not for you.
I am not concerned about an impending "End of Faith." I am concerned about the possibility that we are evolving toward a situation where believers and unbelievers can't even talk to one another without the discussion degenerating. We've had good discussions here, but I have been seeing less and less of it as time has gone on. A kind of intellectual apartheid is where I am afraid we are headed as a society.
If you find someone on the other side isn't giving you real dialogue, then know what to ignore. Don't waste time telling someone they're an idiot. There is no constructive purpose in doing that.