nomis5 - 9:25 pm on Aug 27, 2011 (gmt 0)
matt cutts = google pr man. So his posts don't = the obvious.
My take on this is that google want us to use the 'author' facility of rich snippets to prove ownership - this is not a one off posting from matt about the subject and he will eventually get round to what google will really use to prove ownership.
And the 'authbor' facility will eventually give google two advantages. First easy proof of ownership from their point of view without the need for responding to your emails about violation. Second if you participate in the ownership sheme a whole pile more info about you and your site.
Think - google exists on data, and if you don't participate then they will treat you as a second rate site.