I remember a blue stating C'thun wasn't killed before it got "nerfed" (according to you), because he had a million bugs. And when he was fixed, he was killed within hours.
Tell me something, how many of those 500 pulls your guild made ended with someone making a mistake and going "oh shit, ma bad"? How many of those pulls had your tanks dieing instantly because your healers slacked? With limited attempts, those mistakes will cost you greatly, so everyone have to bring their A game all the time.
Also people keep bringing the limited attempts again and again, then they say limited attempts suck because end game guilds make alts and try the bosses on them, then do with main. They also go and try out 10 man and learn strategy again and again. You guys contradict yourself all the time. All guilds have spend more attempts on LK then they did for Mu'ru or whoever you think is the toughest boss in WoW.
Ok, lets forgot about the LK 25 man and Yogg+0 and lets talk about LK10hc. Guilds are now running with full ICC25hc gear, meaning ilvl277 gear, they still can't kill him on 10hc, while out gearing the encounter by miles. But that doesn't say anything about how difficult he is, does it? :