I make no claims about my own intelligence; what I have said is simply a fact. Amusingly enough, the same correlation holds true for conservatism, so it's unlikely that professors will ever lead their classes with such a quote. I would hypothesize that people become more conservative as they grow older in part because they have more wealth to lose to taxes. As well, they may wish to distance themselves from the naivety of youth. Neither of these strike me as a particularly impressive reasons to change one's political stance.
I wasn't suggesting that Wedge, or any other theist, is stupid for their beliefs. As I have already stated, indoctrination plays a large role in forming beliefs, and while higher innate intelligence might help one progress beyond indoctrination, we are all still vulnerable to it. What I would take away from that correlation is that if more intelligent and educated people tend to be less religious, perhaps religious beliefs should be questioned to a greater degree. Scientists, who spend their lives trying to figure out how the world works, also tend to be less religious than their plebeian counterparts. These are not conclusive pieces of evidence, just more that calls into question the validity of theism.
It's strange that people like you are so quick to shut down conversation about beliefs, hiding behind the guise of "live and let live." He said something objectionable and I laid out an argument for why the scam (and ethics in general) shouldn't be viewed through his superstitious lens. If you're too immature to handle that, walk away.
