So you play alliance and horde? And you take into account everyone leveling alts (ie: not sitting in org/sw/dal in /trade), everyone who isn't talking because they know that /trade is spam, everyone who skips Wintergrasp, all the people who just rp and never go outside of brill or elwyn forest, and all the people who never talk outside of /g?
Then because you were in a great guild, I guess you've talked to everyone else in a great guild on all the more than 200 North American realms alone, and they've all said the same thing?
Sorry, one person saying OMG WHY IS NO ONE PLAYING when you come from an end-game raiding guild is out of touch with the user base. There's plenty of activity, ESPECIALLY now that they're taking away the mounts for the Ulduar Achievements, and the Kingslayer title from the ICC clear. Almost everyone I've seen talk about Cata has been super hyped for it, and are doing what smart people do before new expansions: STOCKPILING.