it's a matter of perspective. i can agree with yours, but i don't think you got mine, and thus don't see the implications or the big picture.
saying it's the attacker's fault might have a point but doesn't get you anywhere. society is complex, with a host of different behaviors. people are how they are, moreso in a game that promotes 'do what you want'. it's the responsibility of the developers (the arbitrers of this simulated reality) to provide means for all these different wills to coexist in a meaningful way. whatever means, but something. it could even be to rule out this particular form of behavior, then enforce that rule. it's a simplistic approach and has its limitations, but it would be reasonable, and probably effective. frontier does absolutely nothing (except bland talk). sorry but it's their artificial world, it's their responsibility to police/shape it. you blaming the attacker on any moral ground might be your valid choice, but is absolutely irrelevant.