1. Having A Terrible Gamer Tag
Ban Worthy Offense: Naming yourself all of the curse words.
With all of the enhtusiasm of a 10 year old discovering the F-word for the first time, you created a kaleidoscope of unprintable expletives. When you combined traditional Western swears with some new ones MIcrosoft had never heard of, you got banned just in case 'Los Flasta' is offensive.