Reach tracks how much time we've played on B.net... I will hate to know how much of my life Ive wasted on this game...
QFT. I like this feature. It's a way to prove you have more of a life than your friends. I'm probably screwed though, out of all my friends IRL, I'm most excited for this and will probably play it the most.
I will play it for at least a week of in-game time, which I would consider an achievement. Enjoying a game? No shame in that.