When an investigative reporter is able to track down a person of interest, it can make for some pretty interesting, exciting and even infuriating television. But what happens when they go to get that interview and there's nobody there?
Celebrities have feelings, too. Even when you think you're just talking random smack about them in the wide world of the internet (web?), you're still talking random smack about real people. If you're tweeting mean stuff? They might see it. And it might hurt them.