Back when we could speak to Horde, I use to run into someone who befriended me, despite me being Allaince. She plays with her brother, who is like 19-20s years of age, while the girl was like 8 years old.
When people found out about this Horde player, she was often bombarded with insults, and sex talk and I tried to report ones, same with the Horde rogue with was with me, but nothing.
Another incident was excessive harassment and insulting some guy's read, ignore wasn't working probably and the guy got fed up and quit.
GMs need to monitor global/world chat because there are some people who are literally below the age of 15 who have to deal with this crap everyday and I'm pretty sure this was the case with some kid I tried to report for a major game breaking exploit, who grew pissed off at toxic players on frostwolf.

