I actually hope the people who keep complaining and shouting "WOW SUCKS" from the rooftops actually leave.
For people who seem to threaten leaving WoW, they sure go out of their way to tell others that they're leaving, rather than take the step that they should have been taking - quitting.
I've quit and left WoW on amicable terms, and I'm often back for more content.
I just wonder why they keep going through the same exercise.