Could you stop dragging this discussion off topic, Janner?
The topic is wether Full Defensive should be classified as attacking, not wether or not Zanzibar stole a kill. Could you for one time lie your childish fingerpointing aside, please?
In my humble opinion Full defensive is not "attacking a mob", but still classified as "being in combat with a mob". You are enduring the mob's attacks, so (under the current set of rules) it should be your decision wether or not to let someone else join in, by usage of the group function. On the other hand however it can be rather tedious for everyone else when a player parks his character near a creature, then leaves to do something else while his character levels in some armor skill, this practice, however, already as far as I can is forbidden. While I am not believing in "fighting fire with fire", I do believe that anyone who "parks" his character, that way, is in the least position to whine about killstealers.
OK, since I feel I am being falsely accused here, I will explain what happened:
I log in and go in search of a mob on which to train my light armour. The arena afterall is where one goes to train up combat skills, is it not? I find a suitable opponent, a mercenary, and begin training. I do NOT go afk. I use a full defensive stance until I run out of stamina then I kill and loot the mercenary. There is nothing in the rules of the game to say I cannot do this.
Nine minutes after I have logged in Shalmaneser turns up and I say "hello" Shal says "Do not use this mercenary to train light armour" "If you would be so kind" But before I can answer he runs off and disappears. Twelve minutes later he reappears kills the mercenary nearby. I am in combat with "my" mercenary which is clearly shown by the animation of my arms but because of a deficiency in the game mechanics Shalmaneser is able to jump in, without another word, and kill "my" mercenary. Was I in combat with the mob? yes I was. Did Shal steal my kill? yes he did since I intended to kill it myself.
It is indeed a question of whether Shal was killstealing, because if I had been using any other stance he would not have been able to attack the mob.
I agree with bilbous that if there was nothing to loot in the arena those who were after the loot would go elsewhere and leave the arena free for those who wanted to use it for combat training.