Wall - o - text!
( this is from a big WoW nerd so....wow talk included

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These are my personal ( and opinionated ) reasons for quitting after a five year addiction to the game are such... ( rage included )
1.) Maturity levels : Before i start i was an alliance and vehemently proud of it, borderline fanatic, and to admit to this makes me sad. I've personally grouped with some pretty cool ass kids on there but it seemed like most people i seen in Trade Chat, the main cities, or sometimes in party with couldn't keep their composure or any shred of dignity to their name. People would and still say that the Alliance was full of immature kids but really its the older people you really have to worry about imho.
This is the same for both sides, but I can see where your coming from.
2.) Lore : I was big on the WarCraft lore and the WoW lore that followed in every quest line ( going as far as to read the pages upon pages of shit on WoWwiki late at night with a energy drink in hand to admire it all ) and for me, just like how George Lucas slaughtered the star wars prequels ( starting with that joke ( some say insult.. ) of a movie phantom menace ) they just went to town butchering everything they worked so hard to preserve, just like Arthas did to Stratholme xD
I can sympathize, it seems we both know way too much about the world of Azeroth and it's universe than any person of Earth should. However I didn't feel the butchering effect, I felt like I was in the world that those events created and while some events were dumb("...was merely a setback") others were really nice(Battling for Undercity). Although knowing that everything has to end up as it was so the game can progress can become frustrating.
3,) The easily accessible loot tables : Blizzards old stuff ( real dungeons such as Naxx or AQ or any 5 man ) MADE you be on top of your keyboard everywhere you went, even if you were just running a lowbie friend ( or someone that paid handsomely ) through the instance, because of how intense everything was and it made a real sense of accomplishment and a sense of pride when you were rewarded new gear ( like a badge of honor ) that you wore for the next month or more (if it was that good) around town and if you were to be so bold...or retarded as to try and run a group / raid through there without knowing whats around every corner you will inevitably die many many times and prolly disband the group / raid, it could be full of 80's and still wipe the floor with'um if you didn't pay enough attention.
I agree with you utterly here.
4.) The amount of junk accessible to you : When i started playing this game five years ago they kept the numbers and values of the upgrades ( stats, crit %, spell pwr, ect ect ) on armor / weapons and gold amounts / prices were small and efficient without making them too ridiculous to get. For me it was like a apple on a tree you tried to jump up and attempt to get but always out of reach tempting them to venture further into the rabbit hole. Lately they have made everything so readily available to get ( mining minerals for lucrative amounts of gold or running one dungeon a hundred times ( the Crusade 5 man when I played ) ) without needing to go elsewhere or to know complex or interactive boss fights it doesnt feel a deep sense of reward. The instance Trial of the Crusader ( aka TotC ) they just scaled up the damage amounts so that anyone who could be CONSIDERED under geared or lucky enough to survive for the ridiculousness of the damage output the bosses incur might as well face roll their keyboard and go on hopes and dreams they needn't have to pay the 75+ gold ( i was a well established tank at the time ) in repairs after they're done the dungeon and hope their group understands this as well.
This caused the previous, as well as other things, well it didn't help in any case.
5.) Classes and PvP : Seemingly every SINGLE time blizzard buffs one class beyond "kitty" whipped too much ( Ret paladins, frost death knights, sub rogues, huntards, and all the rest i cant think of atm ) the forums are up in flame to cry out like a babe crying for their mothers milk for a good solid nerfing of said classes and blizzard complies and takes out anything and everything trying to keep the fan base at a low to minimum flame - age of any other class. Blizzard cant have PvP that's too different or someone might have to actually immerse themselves (not calling or txting during pvp sessions or alt tabbing out of a windowed wow to do something else) in the game or at worst learn how to play their class like they should have. To all you "may be" nay sayers I played a Warrior tank before it was faceroll 3 - 4 button easy sauce and you had to actually be involved in every single thing every single step of the way...and the way i learned my class was to PvP constantly as a tank ( playing defensively of course )
Personally with my little bubble of knowing how to play my class and the occasional info I get from reading some MMO champion I don't think I can give you a good response here.
Personally i think blizzard has readily acknowledged the fact that the lower they set the bar with their consequence & retar...i mean reward system the more brain addled people can shuffle through the game like mindless zombies to sit in their main cities with their dumb vanity pets, easy face roll instances, easy daily grind quests, and the loot that's practically given to you as soon as you walk into the instance and the less work they have to do thinking that people like me wont see how much depth to the game, respect and admiration they had from their core fan base ( like me ) before / after they lost touch. To me i feel like they sold out to get more money...just like some would say Metallica ( for the longest time ) or Linken Park did. I loved the hell out of that game when it was in its prime but right now i have no interest in ever getting back on to talk to my ridiculous amount of friends on my friends list or see any new content cause it prolly wont meet my "high" expectations and I'm fine with that because I've moved on to other games.
Its starting to feel like this more and more, the celestial steed mount should not have made as much money as it did...
hope ya'll enjoyed my post =D
I did, impressive first post there mate, welcome to the Escapist(although you likely stalked the forums for a while already), just be sure not to go into the basement and follow proper post etiquette(as you did here
).