You are reasoning wrong, guys.
Many of you think that if the banned account is on the losing side, there is no need to cancel the game. That is a big mistake.
You see, most of the multiaccounting works this way: one stupid jerk, trying to lock a win, uses some fake second account -and sometimes a third and or a fourth...- in the same game to make things much easier fir him/her.
But -and here is where the system is broke and the mods have it so so wrong in my opinion- when you got them, and the mods can see the cheating is too evident, then they ban the fake account, and take some points off from the real account. So the banned accounts are the fake ones, while the real cheaters and their central accounts get the harm of losing points, just that. But their record still gets the win -if they win-.
Sadly, I have seeing this happening several times.
As I see it, when there is multiaccounting they should ban ALL THE ACCOUNTS involved. But for reasons that I still have not come to understand, there is a strong feeling against it.
The game being canceled, or better yet, with the results not posted but the money redistributed among the non cheaters, that is just common sense but, alas, that's not the way to do things here.
But we are having trouble making the players respect the most basic rules of behaviour, with so many people asking to cheating to be allowed if they themselves don't feel the harm of it (even some mods!!!!), so I can see that getting tougher actions against multiaccountig is an uphill battle.
And there are better and more important battles to fight in this life.