It's hilariously pathetic that 'proxy up' is the only appropriate response now because blizzard doesn't ever ban anyone over this stuff. It's like I'm playing some brazilian game.
Well for once blizzard can't really track who the attacker is, a Ddos attack isnt made from one computer to another. It's using a huge botnet that floods the other persons router until it crashes/lags out. It would be impossible from Blizzards PoV to find out which of these that are the attacker if he is even in there or if they are victims being used in his/her scheme.