If you're referring to the GM hack and the tab "announcement" then nothing, it's patched, and it's just a few pixels on the screen, you can try it out for yourself.
02/23/2011 02:38Missmodd#3
I thought that if you wrote in that and tried to send any text through it you would just crash? I know back in the day a few of us were messing around with it and that's what kept on happening.