tbh at least he is supporting his views with some sort of opinion and constructive argument, which is more than can be said for 90% of the flamers/fanboys/haters/idiots on the internet.
however misguided or wrong his views may be, as far as i can tell (only read a few pages) he isnt flaming as such.
fair play to the guy. just because you guys don't believe in religion, why is that a reason to flame him? He is sporting a genuine argument on THE INTERNET (which is a place of free speech), and is merely expressing his views.
you may find that his mindset is in contrast with yours, but that doesn't demean him in any way.