In a game where there are more players than MOB's to attack, some conflict in terms of who's MOB a particular MOB is is bound to happen. Kill stealing (ie: using a game glitch can, and does, happen), however, attacking a MOB before the person who's been camped at a MOB forever is not kill stealing. To say that a faster, more agile hunter who gets in the first hit on their prey before you can get a hit in has just "stole" your prey is, frankly, ridiculous. Survival of the fittest and all that.
Have I had MOB's "stolen"? Yes. When practicing magic it's very easy for a person come up and steal a MOB you've been battling for several minutes. Yes, it's frustrating to have a person run up and melee a MOB, kill it with one hit, then get the loot and points when you've been maging the MOB for the past ten minutes.
I'd also like to point out that posting chat logs like those in the first post of this thread is unethical unless the people involved in the logs have agreed to the logs being posted. It would be nice if the forum mods would remove any such chat logs from the forums. There have been chat logs posted which are fun to read, and in which no one in the logs is flamed (One between members of Sapere Magi and Outlaws comes to mind), and this isn't what I'm refering to. But logs such as the one at the front of this thread, and another recent one about a players role playing skills (or lack of) serve no purpose other than to flame a player, and they shouldn't be permitted.