Well, we had a similar situation with force quit. Nobody liked it, everyone was doing it, Nexon finally "fixed" it. Except now when you crash, you lose medals too. So legit players got screwed in the end.
Now we have stacking problem, nobody likes it, lots are doing it, Nexon might "fix" it again. Legit alliances will get screwed again, I'm quite positive of the outcome.
In force quit case much better solution was to address broken medal system, I'm not sure what would be the right solution in case of stacking.