Problem: Rangers Arrow Storm stealing mobs everywhere in TI maps. This is especially bad in mid TIs, where they aren't even trying to be inconspicuous about it.
Primary Solution: Ban KSers.
Secondary Solution: Make more rangers to KS back if the primary solution fails which means you will also never been banned either.
Either solution, problem solved. An eye for an eye
Trust me, my friend and I already terrorize the crap out of anyone that dares to KS us, equality goes both ways and karma is real.
The thing is though, why do we have to tolerate and put up with these jerks? Saying that "jerks gonna jerk" and doing nothing is quite possibly the worst course of action. The behavior of these KSers is toxic, the act of KSing encourages (and in some cases necessitates) subsequent toxic behavior from the victims, it gives iRO a terrible image, it gives Rangers a terrible reputation, it aggrevates and wastes the time of well-behaved players, and it sets a terrible example for new players (this last point is especially important as we can expect a lot of new players from pRO soon). There is absolutely no reason why we need to tolerate the existence of these jerkasses.
As you've said and I've already said in the OP, properly banning the KSers is the ideal solution. However, all of us know that the iRO GM team is simply too slow to respond, and most of us can't be arsed to record replays of every single jerkass either since it's the GM's job to be policing this stuff. In lieu of the GMs actually dealing with this problem properly rather than dragging their feets, I proposed this band-aid solution to at least address the most obvious symptom of this problem until the crux of the problem could be addressed.