I have seen both extremes on this site. Some use judgement and insight that show some level of intellect. On the other hand, some use arguments that could be written on bathroom walls. Others hide behind political or religious dogma. Overall the level of IQ would be taken as 100 ( or very average).
How does the IQ of users of this site compare to average? Yes.
How does the IQ of users of this site compare to average? No.
Neither of these answers makes sense.
Make this a poll or something, not an opinion.
This is definitely not a yes-no question.
What day is it? Yes.
What day is it? No.
IQ is the measure of intelligence relative to age. So no, since this site ranges from people of all ages, the IQ would effectively be i/a*100 (i/a*100=i/a*100). The concept of IQ is not relative to this site unless you can average the age demographic, then compare average intelligence displayed by the users and ultimately get your IQ level for this site then compare to the average IQ of average user age. Even then it wouldn't be anything but statistics and an inaccurate mess.