I said "furious" because honestly this kind of summarizes a big part of why I stopped playing WoW.
To be entirely honest I was pretty psyched up until the end of "Liche King" when they resolved the ongoing storyline, but figured "what are they going to do now". In response we got Cataclysm, and while one can argue "Deathwing" is supported by the lore, I just felt the whole thing was bloody stupid, I just couldn't get motivated by the idea, especially seeing as them recycling all the old content with updates as the primary focus came accross as them largely being out of ideas.
This being along with how Blizzard never bothered to address the game balance issues between The Alliance and The Horde, especially in terms of undoing the effects of that damage through the game. I felt that the Goblins... which were silly to begin with when given that much focus, were a slap in the face to Alliance players given how horrifically unbalanced they were especially compared to the Worgen. I mean when your looking at a race that gets a haste boost, a skill upgrade to a big time money making crafting skill (why they got Alchemy other than this, instead of Engineering is beyond me), anywhere in the world bank access, and a racial abillity that functions as either a blink or scaling DD instant cast attack... compared to a race that has the abillity to bend over in the anal sex position and get a slight movement speed increase for a few seconds... yeah that's pretty bad.
The recent issues with the insults/threats towards Alliance players just put some final confirmation on the entire thing.
Then there were fundemental design issues with a few of the "pure" classes. As a mage player when they started to increasingly make it so that any DPS character could do as much damage, while retaining the mage's crappy defenses I had an increasing issue. All of the "Well I can only wear leather or chain" is ridiculous considering a class that can only wear cloth. Not to mention those other character types generally have more diverse abillities. A ranged DPS druid can still fire off a heal, or a battle rez, or shapeshift into a more durable form in a pinch, not as good as someone who is specialized, but those abillities are still there along with the damage dealing. With a mage when your abillity is "do damage" exclusively, and a crowd control that is rarely viable in instances (99% of the stuff seems to be immune where it would be really useful) that's a problem. Rogues were in a similar boat IMO.
So basically, we have these imbalances, including some fundemental flaws to the game design that REALLY need to be addressed. A new talent system being unlikely to help because honestly when it comes to SERIOUS play people are still going to come up with optimized configurations so it resolves nothing. Certain classes need to be re-conceived from the ground up....
... and then we have Blizzard not coming up with any new, worthy, content after Lich King. I mean Deathwing wasn't all that inspiring, and now this whole Pandarian thing is even worse. I mean if the best thing Blizzard came come up with is to make an entire expansion about an old joke, that's pretty bloody sad.
To be honest, both Monks and a Pandarians are things people have wanted in the game because they would be cool, but not as the major focus for an entire expansion, and really that's the problem. Had they come up with something as compelling as the whole Arthas storyline somehow and then threw in a few little things like that as a sideline, that would be one thing, but really when the whole supplement is "Mists of Pandaria" that falls under the "WTF" catagory.
WoW has a lot of addicts who will stay until they turn off the lights (if that ever happens) but it should be no surprise that the game is losing players at an astronomical rate. I think things have gotten bad enough where even WoW players are able to look at the Pandarians and think "wow, that's really retarded" when it's a major game focus as opposed to just a side joke.
I think the disagreement on whether this is good or bad will be resolved based on what happens with the WoW player base over the next couple of years. Really, I think Blizzard needs to get some details on other projects out there pretty quickly. They have "Project Titan" out there, but it's hard to get excited about with the almost total lack of information.