Earlier today, certain realms were affected by an in-game exploit, resulting in the deaths of player characters and non-player characters in some of the major cities. This exploit has already been hotfixed, so it should not be repeatable. It's safe to continue playing and adventuring in major cities and elsewhere in Azeroth.
As with any exploit, we are taking this disruptive action very seriously and conducting a thorough investigation. If you have information relating to this incident, please email firstname.lastname@example.org. We apologize for the inconvenience some of you experienced as a result of this and appreciate your understanding.
Im quoting this from another thread because its insane how biased blizzard is with banning etc.
There are plenty of people in top guilds who got two kills on certain bosses in MSV in 1 lockout week and not one thing was said to them and they just got away with it.
Or the thousands of people who exploited crab killing via mob tagging and leveled insanely quick but those who leveled legitly it took hours up hours for.
IT DOESN'T PAY TO BE HONEST!!! MINE AS WELL JOIN IN BECAUSE ALL THEY ARE GONNA DO IS MAKE OUT MORE THEN YOU!!!!