Warhammer Online fan base, it's captivating stuff. When players in WAR finish a Public Quest, the loot they get is partially dependent on their "Contribution" rating, which supposedly credits them for the amount of damage and healing they did during the quest.
According to the tests of some players though, that number is random, applied when the player enters a zone, and remains stagnant until they leave it or log off. This has been kicking around for a couple of days and Mythic has not, as of yet, leaped to its own defense. We'll let you know when they speak up.