Yep, I has it, and not in an "Ennui ole cuss" way either! I logged onto my Troll yesterday to wait for Teurion and VA to run our Hordies, but they didn't show. So, I did some quests, but just generally felt bored with the whole thing. I ended up turning it off and watching TV with my wife.
I really don't know if this is a result of WotLK or just boredom with the game. I reckon I'll find out sooner or later.