Actually the end of WoW was that they bended to people complaining of difficulty, the dungeons in cata when they came out where fun as hell problem was casual players didn't want to gear up before jumping into it, so u had a bunch of people that standed on fire completely undergeared complaining that they couldn't progress in game. They complained about heroic Ghostcrawler tried to defend it by saying heroic wasn't for everybody(maybe a poor choice of words) and u had alot of noob rage(being a noob is not a bad thing, noobs raging over anything they can't do is probably the worst thing in any game ), that caused the game nerf and that was the end of WoW.