RBG anti-lose exploit

Hello! I need to report this very stupid bug to everyone here so you know why some !@#$ing dicks are on the top of the RBG ladder at the moment.

If you're about to lose a RBG game and then leave before the BG is over. You don't get the loss. A player is exploiting this a lot. Just want to hang this idiot kid out here on the forums! Ban inc for exploit please?

Thank you very much.