EditorialGuy - 6:23 pm on Oct 28, 2013 (gmt 0)
At PubCon 2013 Matt Cutts made a couple of statements that indicated they would be dialing back the number of sites for which rich snippets would display.
Not surprisingly, Authorship has been adopted more heavily by SEOs and their clients (or by bloggers and others who are aware of Authorship) than by rank-and-file site owners. Big media have also been slow to jump on the authorship bandwagon, for the most part, probably because they aren't eager to promote their writers' personal brands at the expense of their own.
Because of this, rich snippets are likely to be skewed toward the "commercial" and away from the "informational," which is almost certainly the opposite of what Google wants. So it's reasonable to guess that an overall "rich snippet" reduction of 15 percent will mean a bigger hit on sales and promotional pages than on, say, informational pages and blogs.
Side note: In September, Google announced partnerships with Wordpress.com and Typepad to embed authorship code automatically on blogs whose owners signed on to Wordpress.com or Typepad with their Google+ accounts. So, while it's possible that Google is playing down Authorship markup and its much-discussed AuthorRank or "Agent Rank" initiative, Authorship isn't likely to go away any time soon.