I used to be an avid WoW player. WOTLK was the best expansion they made, hands down. The mechanics were solid (if easily exploitable, at best), the gameplay was reasonably thought out (to an extent), and the environment was pretty engaging (and at least 5% of the population weren't complete morons). When I saw the preview for Cataclysm, with its "challenge" of a +5 level cap, new "features" (YOU CAN NOW FLY IN AZEROTH!), "professions" (let's dig around in the dirt for hours on end!), I stopped playing.
At that point, I realized that Blizzard was headed on a downward spiral pretty quickly, and nothing short of angrying up the blood of Ted Turner and sacrificing a chicken in a non-denominational ceremony would stop this quickly approaching trainwreck from happening. Several of my close friends asked me why I thought it was a bad idea. I told them that I knew it was a bad idea because it was *clearly* a BAD idea. I know them when I see them, and this was no exception. My current roommate convinced me to start playing again, and reluctantly I did. It turned out not to be as bad of a trainwreck as I thought it would be, but it was still pretty bad. Everything had been dumbed down, and repetitively grinding rep, dungeons and more dungeons became the focus of the game. We were also able to actually BUILD a character, and things looked promising enough that Blizzard might actually have the chance to redeem themselves.
Man, was I in for a surprise when MoP came out, which I'm pretty sure a mop is what they used as a template for this particular expansion. This legendary, mythical mop wasn't made of anything fancy, like polished, pressure treated oak, a handle made of Corinthian leather, a titanium reinforced head with gold lief, and appropriate mopping fabric material made from the finest imported silk that one would be proud to caress their nether-regions with after a hard day's work. That one just happened to be the high priced, maximum quality mop that was shown on the Home Shopping Network for just 8 easy payments of $99.95. Clearly, this was too rich for their blood. After rustling up the town drunkard, they gave him a 12 pack of Blatz, a jug of cheap wine, and a 6 pack of Natty Light, and set him to the task of finding a mop of this quality. But really, quality didn't matter, they really just needed a mop, and there weren't any good sales going on that particular year.
Several years later, the drunkard returned with a rake. "I couldn't *hic* remember what you were looking for, but didn't you say something about toilets? I think *hic* this is a plunger."
Swing and a miss, Blizzard. 3 for a valiant effort, though. After obtaining this artifact of non-descript antiquity, the development team went to work. Behind closed doors, they agreed that it was most likely a rake picked up out of a dumpster or maybe someone's toolshed that lived down the street. They weren't sure, but there was no turning back now. Best not to let the public know, they also agreed, lest The Almighty Wrath of Tom Selleck's Moustache rear its head again. One of the leads suggested that since it wasn't a mop, perhaps they could make the offcast drippings of churning a poop vat into a mediocre product that would suffice in temporarily plugging the gaping hole in a quickly sinking ship. But it would need to be concentrated.
What was released with Mists Of Pandaria was percolated fecal matter of the highest caliber. That wasn't even from the bowels of the unsuspecting public. This was from Blizzard's own septic tank, full of late night tacos, half-digested food from Grampy's Greasy Spoon Diner (home of the 1/2lb Grampyburger for 89 cents, cheese is 10 cents extra), and empty ketchup packets that had been chewed up by the family dog and evacuated onto a moderately expensive accent rug that had once decorated the lot of the local carwash for 15+ years.
This was progress. This was the trainwreck that everyone said would never happen. Sweet glory of Jesus this was spectacular.
Instead of actually being able to build a hybrid character, you could only choose to implement one spec at a time. "Talent Tree?" More like, how would you like your eggs, with a side of undulating pustules, or with an ice pick and a cyanide capsule? Yes, I still play it, but only because I don't have to pay for it. I don't think it should come as any surprise they've seen a drop in subscribers, and will probably continue to do so until they drag their head out of the sand.
This is the very reason I control the marketplace of the entire server. It's the only thing left.