Hmm i can remember many times when i was leveling some of my alts and lets say they were in kalimdor and the kalimdor "server" vent down and i or any of my guildies/friends couldnt log to any kalimdor chars but they could log to any char on the other island. also people saying in general when this happends that dont go to kalimdor now the server is down
PS. sorry for my bad english