Disconnects in SC melee is worse for your record than losses, imo. I run into cheaters all the time; some games worse than others. As for what I do, I've learned to accept it, mostly because there's nothing stopping people from cheating in the games I play, not even the company itself that manages the game. It's been a long time since anyone cared. I then proceed to either thank them for having the hack, or beat them into the ground senseless (in the game of course).