Two players using the same name? This occurs a lot in multiplayer games. The only games where it should be a big issue are those pay per month games since it costs them subscriptions. I have regularly played on RPG names shared by more then 3 people, it cuts down on the mindnumbing grinding. I do however, agree that one should not use multiple aliases in a league setting, but this was not the case. One could argue about the implications for scamming people, but that will happen regardless of any such rule. If two persons trust each other enough to share names, why would you care what the hell they are doing.