I'm sorry but this piece of journalism looks and smells very similar to the forums posts we see trying to mathematically prove that some random MMO isn't dying, or Fire Bolt is better than Frost Shock. Usually those forums posts come off as a little pretentious, with the "I DO MATH, YOU ARE WRONG, SO THERE!" conclusion at the end. I have higher expectations of Massively.

Anytime you try to quantify something intangible, like the "feel" of emptiness in a virtual world, you are going to have to make a lot of assumptions which I really don't care enough to argue with, or even read. Second Life FEELS like a ghost town, no matter how much your math proves to me that there is someone, somewhere logged on to the game with me.