Whats wrong with harassing stubborn targets with multiple rounds to soft tissue, while everyone else gets 1 or 2 in the legs or gear?
Wearing numbered flags makes the finger pointing easier, and if you allow accusations under the safety of anonymity it becomes an all too attractive excuse for whiny brats and their cohorts; a new problem has developed. As you get to know people, not numbers, you learn who needs the just the one-two; and who needs the three-four-five-six-seven-eight and nine.
When it comes to dishonorable pig-dogs; expect no quarter, and none shall be given. Tag them multiple times whenever possible and then move on; you've won. If they tag you, or you get roiled about their play style; you've lost.