However, I ridiculously outgear most of the instances I was hopping into -- so I did my best, hitting the tank with Tricks of the Trade, vanishing if I happened to pull aggro, and trying to stay low-key. It didn't really work, however, and there was one guy who was absolutely incensed with the amount of DPS I was pulling -- so much so that he dropped the group.
That bothered me, and it also got me to thinking. Is there really such a thing as being too geared for an instance? Why do people get so upset with people who are overgeared? As far as I was concerned, I wasn't in there to take loot from people; I was in there for a Darkmoon book. Gear upgrades were not on my list of things I was looking for, nor was transmogrification gear. If anything, the gear I'm carrying around and the numbers I'm pulling means it's going to be a slightly easier instance run, so ... I can't really see the reason why people would be upset about it.
What do you do if you run into a random heroic and you find someone who is way overgeared for the content? Do you breathe a sigh of relief and do the dungeon, or do you get upset at the player for being there? If you get upset, well ... why is this a cause for concern? Does it matter what a person's gear is, as long as they're pulling their weight?