I think there are two factors at work that are giving rise to this impression. One is that there seems to be a recent fad of collecting stories about stupid things people have done. There are books, web sites, and the like dedicated to stupidity, from tales of stupid criminals to stupid quotes from politicians to stupid deaths (the Darwin Awards). The other is that it is much easier to pass along stories of this nature, through such media as the web sites, email, and talk radio. It used to be that most people would only hear of an act of monumental stupidity if it somehow made the national newspapers. Now, such tales can get forwarded around the Net whenever they happen, discussed on talk radio, and the like. The result is a lot more tales of stupid actions, without requiring any increase in the number of stupid people.