My point is that judging a person - a sophisticated individual with complex life history and embedded in equally complex environment - by just few bits of information, is a very stupid thing to do in general. There are situations in which you have no other choice, when few bits is all you have to go on and you need to make some decision. But those situations are very rare. In a typical case, such evaluation is just irrational - few bits are not enough to describe a person in any useful way.