Actually, you should read more. We're in a Football Manager forum, inside "Football Manager 2009>Players>villa" thread. What game do you think we're gonna be talking about, Hello Kitty Online? If you say "in-game" that means inside the game which you have played, which makes it YOUR game.The game as in FM2009.
Maybe try reading more. When people says "in my game", you would know that it wasn't related to your game. But the impression you give others when you say "in game" is strictly talking about the game - FM2009, not just the game you're playing. Yeah, everyone plays their own game, but everyone plays the game, too.
As a whole, it is THE game but if you're talking about any features or entities within the game, then you're strictly talking about YOUR findings in YOUR own game and not SOMEONE ELSE's. So if I say "in-game" on a thread about FM2009, then I'm talking about my own experience in my FM2009. If you had said "in-game" and actually meant inside someone else's game, then you're lying.
P.S. - This is pointless. Online arguments are yesterday's news. So I'm withdrawing my troops from the frontlines. I'm cutting my military budget and go on a shopping spree.