It's a Ticker-Tape Parade
Some people think that status bar is useful for checking the URLs of links they do find -- to see if they've already been to that annoying site, or to see which links will take them far away from your site. In either case, they may hang around. Don't waste this opportunity: put a looping ticker tape message there. It doesn't have to be useful information -- in fact, the more incomprehensible or unrelated to your website, the better.
Oh, please... you're not going to make me do an example, are you?