I think it's pretty obvious that this shouldn't exist in the game. I know that there at least used to exist a system where the server automatically reports you for pking the same player too many times in a row, like Thallen has mentioned for spar. I don't know if this old system has been replaced with one where the kills just stop counting, but if so, that's a really bad change. If there is a GP online, they should be able to respond to the automatic report and clearly determine if someone is actually boosting, or just pking a tower.