...and that's their choice to use their time and cost themselves money in order to penalize me. So if I chose to kill them, I get penalized twice. Loss of karma for the actions I chose and loss of time/money for the actions of this other person. The other person loses nothing more than what they already decided to give up. This is why the system isn't balanced, one side can inflict loss while the other can not. No thanks are necessary, because that is not an abuse of the karma system, in fact, it's not abuse at all.