I think it's a mistake to generalize from those RWW commenters to "normal users." Of the millions of people who logged on to Facebook yesterday, many thousands

I think it's a mistake to generalize from those RWW commenters to "normal users." Of the millions of people who logged on to Facebook yesterday, many thousands probably got there via Google, and fewer than fifty ended up commenting on that post (though there were probably many more who clicked the post but didn't comment). The commenters are not normal computer users; they are a very aggressively filtered 99.999th percentile of the users who have the most trouble navigating the web.