After the introduction of MoP at Blizzcon, many fans were angry and confused about the expansion. One focus for that disatisfation was "no big enemy". As negative word of mouth about MoP threatened to boil over, Blizzard released information about how Siege of Orgrimmar would be the final raid of the expansion, with Garrosh as the "big bad". By doing that, they undercut the whole plot of MoP; they effectively gave away the ending (weakening the whole expansion's story) while attempting to make up for their horribly botched reveal. The whole episode is symptomatic of modern Blizzard's problematic approach to their fans and the game. Blizzard has always seemed remarkably out of touch with their customers, and even more surprisingly, doesn't seem to care that it's out of touch or that when it does try to connect with the customer base, it's always in a pretty ham-handed manner. I fear that we'll see something similar at Blizzcon in a few days. (Although I hope we don't, and that Blizz has learned something over the past two years.)