Recently an exploit was discovered that would crash the entire server a user was on. It became such a problem that Blizzard was throwing out serious punishments to countless users.
The method to knock a server offline for 2-3 min:
1. Be lvl 70 with an arena team
2. Invite somebody to the arena Team
3. LOG OUT
4. Make them accept the arena team invite AFTER you have logged out
5. Server Crashes
It was hot fixed soon after the exploit flew across the forums on the internet. The exploit no longer works so don’t try it :P
