Gaming is full of rage, everywhere. Sore losers will always attack their opponents. They usually stick to generic attacks, unless they know something about you, when it gets specific. If you play a certain class, some insults will contain class specific terms. If they roughly know your age, they will either call you immature or too old to be alive. If they know where you're from or your religion, they will use racist insults. If they know your gender, they will use that to make their insults hurt you more.
This post reminded me of the there's-nothing-you-can-do-about-them "I want to stick my long-necked giraffe up your fluffy white bunny" http://habitatchronicles.com/2007/03/the-untold-history-of-t... .