I'm pretty sure nobody from us in this forum didn't raise that Srebrenica banner, didn't raise Chetniks flag(yes, even that was there, link : http://www.bljesak.net/Thumb/502x339/atena-grcka-bih-sukob4.jpg ), didn't boo opposite anthem, didn't throw pyro on the opposite fans, didn't yelled Macedonia or something, actually I'm pretty sure most of us from this discussion were not at the stadion at all and we all agree that we don't support that behaviour, aren't we?
So none of us should not really try to explain something committed by other people, for instance only people who are responsible for Srebrenica banner are those who raised it, not all Greeks on the stadion and of course not all Greeks in total. But that's just how I see things, but I'm afraid not all people are like me in both nations.