I came across this article which outlines the "9 Most Annoying Types of Online Gamers" and got a good kick out of it. After Playing WoW for the past eight years, I've certainly seen my fair share of all of them on the list and then some. (I've even admittedly shown signs of at least a couple.)
Besides the ones on the list, what other types of gamers do you always seem to bump into online, be it WoW or another game?