I used to debate at the JREF Forum for many years. Spend a little time there and you might change your opinion. Some may think it's silly, but a lot of them love this kind of stuff.
I guess my experience is more with the founders and Presidents rather than the members.
That was my point. I know there are plenty of anti-Christian zealots who call themselves atheist. However, the more educated amongst them find it silly and actually hurts the purpose. Cause it just looks stupid.