Just because most people would have done it, doesn't make it ok. Durial knew that he was abusing a bug, and he enjoyed ruining other people's fun and work. He is not an average, well mannered human being. He is a murderer. I'm honestly surprised that he wasn't banned on the spot. I also find The Rat's worshipping of this murderer disgusting. Duriel killed innocent, defenseless runescapers, and The Rat worshipped and congratulated him. And The Rat even sympathized with the murderer when he lost the phat that shouldn't even had been his in the first place. The Rat's name truely suits him. And The Rat's assumptions that the majority of the players of Runescape would have done the same thing is groundless and made-up. His saying that the majority of the players of runescape are pkers is also groundless and mere assumption. In fact, studies show that those that play MMORPGS for PvP action are in the minority. Just because Duriel said that he felt "sorry" for the people he killed, doesn't make his actions justifiable. If people could be redeemed for just saying sorry for their actions, thousands of murderers, robbers and law breakers would walk the streets. And Duriel could have easily just lied about feeling sorry, all it would take are a couple of typed letters.
