Bob: A lot of academic atheists, when I was involved with secular philosophy departments, took relatively little interest in their position. They were dismissive of religious belief, but they sometimes complained about having to cover the problem of God in classes.
But some atheists blame religious belief for 9/11, and they think President Bush's unfortunate response to it (in particular, invading a country in no way responsible for the attacks), was the work of a "praying President" who wore his religious beliefs on his sleeve, and so they see the conflict over terrorism essentially the effect of the damaging effects of religion on the minds of its followers. They also see the rearguard action of religious believers against biological evolution as of a piece with the failure to accept the scientific consensus in the area of global warming, and these are also intellectual tendencies that are damaging to our society. Joe Sheffer once told me that all evolutionary biologists receive a lot of hate mail from Christian fundamentalists. Whether we go forward in civilization, or backwards, according to people like Dawkins, depends on whether we are willing to chuck our antiquated religious beliefs and embrace science as the measure of all things. So I can see why some atheists care about sharing the Four Atheist Laws with believers.