I have an IQ higher than the average person (not very hard, the average person is actually quite slow) and through life experience have seen that I am more intelligent than the majority of people I meet (not my friends however, I usually am not as intelligent as they are).
As to this site, it's hard to say. Video Gaming as a hobby, especially as big enough of a hobby for the person that they would peruse the internet about it, should indicate above-average intelligence. So I'm probably around the middle of the pack here I would imagine.
I think this quote is fitting here:
The fundamental cause of trouble in the world is that the stupid are cocksure while the intelligent are full of doubt.