I am very surprised that this is news to this blogger. Jakob Nielsen has been letting people know this for years,
http://www.useit.com/alertbox/9710a.html
that people read very little on the Web,
http://www.useit.com/alertbox/percent-text-read.html
but maybe most people have never read those articles. Hm.
But to respond to the author of the submitted blog post, why SHOULD I read for more than ten seconds if the first ten seconds don't provide a rationale for reading further? I do read several articles a day in full length, but they had better be well written and informative, as there are millions of other Web postings out there competing for my attention and time.