The Aion number is way off because no one posts on the official forums, try doing a search of Aionsource instead, I promise you results substantially more than 15.
On the Age of Conan numbers, that mainly comes from people who buy the game, pick a melee class, and then come to the forums to whine about the lack of "auto attack" and to complain about being forced to use directional attack to complete combos. That and when you quote it will cause Google to see the result again everytime it is quoted, and people on the Age of Conan boards LOVE to quote.
Of course, the people who have been playing AoC from the start know about the problems and issues, even the most diehard AoC fanboy jumps all over Funcom everytime they screw something up, so we really don't need someone fresh thru the door saying how much better WoW is, or how much more content WoW has, or how WoW's endgame is so much deeper...... of course it is, the game has been out for 5 years and seen 3 xpacs. Of course it has more content...... and then...... Go back to WoW is uttered.
^_^