Rationally proving rationality

[Perhaps]

In order to understand one's own argument they must understand their opponent's fully. That is why I posted this thread. I was a staunch atheist until I came across this question. I figured that I could post it on here to see other atheist's opinions on the topic. My point is not to prove or disprove the existence of a deity, although if this is true then it has implications against the support for the non-existence of God.

I understand that many religious individuals are close-minded and naive about their beliefs, which often corresponds with perceived stupidity. I beg you not to consider me in this category. I simply wish to further strengthen my stance of atheism by answering this question. If you can't understand the question then I apologize, but don't attack me for having an alternative motive, please.

Thanks,
Perhaps