I agree that polls like this one are not necessarily the most effective tool for quantifying the caliber of the members; I was going by my own personal experience more than anything else.
Remember, I came from a site that was the absolute dregs; to the point that even the most boring, tedious fail-trolley here (and there are a few folks that fit that description) is still far more tolerable than the worst offenders there were.
That I can believe.