Reading some of those are really quite shocking!
I'll admit for awhile i had a bit of trouble allocating WoW time and other life ??? to take care of, but I got a handle on it, and i was never as bad as some of those people.
The trick is, to remember, and realize, it is just a game...there really is nothing to gain from it other than enjoyment...yea there is a social aspect to the game, but nothing compared to talking in real life. If your more worried about raiding and getting better gear, than you need to quit wow for awhile if not for good...
I've been playing WoW essentially for 2 years, but i've taken a few month breaks in-between all of that.
the biggest key is to just remember whats important in real life. Family, Friends, your job, etc..
without any of that, you can't really enjoy anything, including WoW.