Im not actualy banned (yet) but i have been faced black screen issue now twise and think its some kind of metod to find bot's. It just turn my whole screen black so i cant see anything but gb still "somehow" know what to do. It can be fixed with command /reload. I dont know are you guys already knowing this and try to find way to avoid it but if u dont i highly recommened to look at it. Its probably method what gm's use when some one report other player using some kind of bot.
This is a WoW bug that goes back as far as 2010. It's not a bot finding method It is just more prominent in MoP
Thanks for answering, i just lost my sleep when noticed that my screen was totaly black on morning when i woke up...
mine does this to in my virtual machine on my mac mainly when i am going to flash websites ya its annoying as hell