From my perspective some of the most avid xboxers on VGC are actually very calm and relaxed. Many of the Xboxers are multi-console gamers as well.
Now if youre talking about the ones that argue a lot youre talking about maybe 1-3 people? Maybe more, not sure. I cant think of many. Sales2099 rarely posts, Selnor and Kowenicki are gone most of the time anymore.
And you can say this about all fan bases really. Most of the bigger users who argue a lot will get banned a lot.