Why are you bolding the obvious shit? The whole point of the DRM 24 hour check-in was to authenticate games. Did you think M$ was doing it for shits and giggles? No 24 hour check-in means you have to use the actual discs to authenticate the games just like you do now.
"That's the reason my FFL team name is TrentGreenLeadBlock. When you see this mother****er coming around the corner on a block, put your children to bed and batten down the hatch on your girl's snatch, because the same power that destroys defenders can scar the minds of the youth and simultaneously impregnate any woman within sight, live or on television."