It is very important for any Social News website to cater to the lowest common denominator. I agree with some of the comments here that suggest that a lot of pe

It is very important for any Social News website to cater to the lowest common denominator. I agree with some of the comments here that suggest that a lot of people might feel alienated. It would probably work to abstract out the IQ of the user from the user himself. This means NOT having an IQ test per se and instead using relevant data mining techniques to measure the knowledge of the user based off of the user's posts and the rating that the user receives. I guess knowledge is a more relevant criteria for most people to read a given post, unless you expect someone to solve/crack a problem, rather than add content. But, at the same time, if the metric (could call it IQ or KQ??)) can be internalized, and used to group people together and in turn used to attract people falling under a given group, might be valuable. A notion of relative IQ (of groups) would probably be more relevant here. (Creating an e-harmony for people in the same group and cater to their needs based on a given metric) I also agree that this will apply better in a domain specific platform more than other generic social content platforms, simply because it would be easier to measure a given user metric. So, it needs to be as domain specific as possible. Is anyone working on this kind of a model? Definitely an interesting problem!!!