There is a certain ambiguity to the last two (actually the last three) posts, wherein Zakath answered Knight's question, and Knight challenged his answer. The ambiguity begins with Knight's original question, which I'll paraphrase here (since I forget to copy it). It basically went like this:
Q: Zakath, do you believe there are some things that are wrong even if they are accepted by a society, government, or culture?
Ambiguous because: it does not clarify just how the culture/society in question relates to Zakath. Is Knight asking if he believes in such wrongs if they are accepted by Zakath's society, or by any given society?
Not speaking for Zakath, but I assume that if Knight had been asking clearly about Zakath's own society, then Zak probably would have answered differently, because we usually view right and wrong within the context of our own society (whether that "society" is a neighborhood, city, state, country, religion, ethnic group, or whatever). As such, none of us are likely to consider a thing wrong if our society accepts it as right, unless it is viewed as wrong by another society that we are also a part of. Each of us belongs to a number of societies, and some affect our morality more strongly than others. It depends on which society we most strongly identify with the moral. A Christian may live in an American society that does not view premarital sex as wrong, but the Christian society does. If that person identifies more strongly with the Christian society in regards to that moral, then that particular view on premarital sex is likely to override the other. If he identifies less strongly with the Christian society, then he may adopt the larger view toward premarital sex.
On the other hand, if Knight had clearly been talking about "any given society", then Zak's answer makes perfect sense (although Knight is right that Zak probably misspoke by saying "yes" instead of "no," probably having misread the question). As Pilgrim demonstrated on his thread about Pakistani Tribal Law and Absolute Morality, there are at least some societies in Pakistan that accept gang-rape as a right punishment for what we would see as a minor transgression (or not a transgression at all). Those of us who are relativists would say that it is wrong, because it is wrong in our society. Our notions of right and wrong are held in context with our society. As I've said a number of times "wrong" and "absolute wrong" are two different things.
I would score round 2 even. Zakath lost a point by miswording himself. Knight lost a point by not being clear about the context of his question to Zakath.