xFire only count those that actually play the game and use xFire, which is most likely a rather small minority of the gamers, and most of the xFire-users tend to be those that jump from game to game.
Yes, Xfire only counts those who run it, and yes, that's only a small segment of the overall gaming community.
But that's what sampling is.
As for your last claim, that's just speculation born of your own dislike for Xfire, though I can only speculate as to why you don't like it.
I would say someone that actually have access to the numbers in question is more likely to tell the thruth than a small minority that a third party program collects info from.
By the looks of it, it's the same "over 3 million sold" claim we've seen for awhile now. But they've got to be the first to claim some sort of victory due to the winter break activity spike.
That's exactly why I wouldn't trust the guys who have the actual numbers. They have the most incentive to fudge the numbers. They'd hardly be the first developer to do so. Heck, I've seen big claims like this before, alongside Xfire numbers which suggest the complete opposite is true; funny how Xfire turns out to always be correct in those cases.
Edited by Millimidget, 06 February 2013 - 06:49 PM.