Where did 10,000 Halo: Reach players come from?

Sarcasticgamer.com gets a crazy screencap from Halo:Reach showing an insane amout of players playing the game before launch.

From the news post: "Halo: Reach is a hugely anticipated game. It comes out two days from now. Yet there are over 10,000 people playing it online.

Don’t believe me? Check out the screen cap, after the jump."