Maybe because "It didn't work out"? You connect raiding with popularity. Well..riddle me this: At the high time of raiding, with a 30% zone buff, 1.2 million ppl were in ICC. When DS was released with LFR, 2 million went there. BUT: In all the raids before you would see 100 000 to 500 000 ppl raiding.
This doesn't even REMOTELY explain why 5 million people have quit since WotLK...unless you think it is reasonable that 5 million quit because "Oh..in Classic only 100 000 ppl raided but now in MoP 2 million get to see content in LFR so...I quit the game"
Makes no sense at all to me.
What are even "the roots of the game in difficulty"? The roots of the game were in Classic. Here is a link to bosses in MC
http://www.wowhead.com/zone=2717 - Feel free to explain to me how this game..at its roots - was more difficult back then.
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And at the same time, there are all the competitors out there who see how Blizzard fails, take all the good hints from the forums and churn out games that cater to all these disgruntled people, finally trashing WoW and attracting millions of subs.
Oh wait. There aren't. Ever wondered why?
Seriously...if it was so easy to make a game that attracts people..why isn't it done? Why with all the clever shit you people spout on the forums can a company like Bioware with a franchise like Star Wars NOT compete with WoW?
Why does Rift et al sink to F2p? That is THE ONE question that nobody can answer me.