The dischack is becoming astoundingly popular. Literally, I'm not even exaggerating, every single ladder game I play I get dischacked. I'm not even kidding - seriously, EVERY...SINGLE...GAME. Not even kidding. It's that bad. You should permanently ban all offender's CD keys from battle.net.
I believe it somehow does this by desyncing another player. For crying out loud, if every single game I'm getting dischacked, you need to take some serious action.
P.S.: I love the new battle.net website refurbishing.