I didn't know World of Warcraft existed until I stumbled upon a SouthPark episode about it. A link to a part of it (with an annoying Nickelback soundtrack) is below:
YouTube - South park- World of Warcraft
The episode revolves around a mysterious WoW player who keeps killing the SouthPark kids' WoW characters almost as soon as they log into the game. It turns out that this mythical WoW stud is a big, bald slob living in his basement with a giant bag of Doritos or something.
The SouthPark kids then create kind of a boiler room where they do nothing but build up their experience points so that they have enough to kill the other guy. They become obese, break out all over with pimples, are exhausted, and have parents show up with bedpans so that they can get the job done.