Well, I find it really pathetic. As RP suggested, it's highly unlikely that this was achieved by in-game means exclusively. Reading the article it becomes evident that the undercover player befriended the target player to a certain degree. And the douchebag behind it all has the gall to brag about that specifically. In the end, it all comes down to something as petty and contemptible as betraying one's trust to win a game.
Sure, it can be argued that online friendships aren't "real" friendships, but still, it speaks volumes about the person. How much lower can an online player sink without actually breaking the law?
Of course, the devs brag about it, claiming they have created a world that allows for such "deep political plays" or some such nonsense. The sad truth is that all the technology needed to betray the trust others have in you in any gaming community is an IM program and perhaps a message board. And CCP most certainly haven't invented those.
If I had any doubts left about MMORPGs, they have all magically dissipated now.