Exposing a liar isn't any more of a waste of time than arguing about how big a waste of time exposing liars is Frauds do get caught and stopped, or at the very least, less people are taken in and hurt by conmen because someone exposed them. Just because someone keeps poping up online or elsewhere, it doesn't mean that actions like telling the truth about a career conman can't make a difference in other people's lives. The truth is, it's NOT impossible to stop charletians. It may be difficult, but it's been done before.