netmeg - 1:59 pm on Jun 10, 2013 (gmt 0)
I think they're still trying to figure out what they're going to do about rel=publisher (I can't wait to see something similar for ecommerce) and refine rel=author. I don't consider either to be a finished product and I bet Google doesn't either.
As far as scrapers go - the sad truth is that pretty much any hoop you jump through to prove you own / have generated your content, someone else can can also spoof to make it look like they did. And there's no shortage of criminals. I honestly don't know that I believe Google will ever be able to definitively solve that one.
(And personally, I think Bing and Yahoo would have the same issues if they were big enough or sent enough traffic to make anyone want to go to the trouble)