Ok, I have evidence to prove he was farming pk points on himself. There were only 4 people online (displayed 16, 16 divided by 4 = 4).
This was point 1, considering that when there is a fight there are many taunts sent over the ::yell channel =\. He also had ghostly robe top, an ammy and a weapon - Which are the only requirements to kill someone.
A little sus isn't it? Fighting someone hundreds of times, only using those 3 items?...
So yeah, I am confident in that he did abuse this newly added feature. To confirm this, just check the logs if you don't view this as enough evidence :].
--JakeexD