The more traffic your web site gets, the better — unless it's Digg traffic. Getting dugg can bring server-crushing loads of traffic to a site, but readers coming from Digg spend, on average, 3.6 seconds on a site before they bounce off to the next flavor of the moment. Either they're really fast readers, or they're just looking at the pictures. It's even worse when Digg readers stick around, because they'll litter your comments with increasingly strident and off-topic remarks. "The worst in human behavior comes and sits on your front porch, begging for your attention," complains the search engine consultant who analyzed Digg users' behavior. Now she just wants Diggers to — please! — stop bothering her.