btsteed - 2:39 am on Feb 28, 2012 (gmt 0)

How is this any different than when someone shares on facebook or Google+? I doubt there is going to be a rush to put nopin tags on sites, with the possible exception of sites that disallow image sharing now.

I completely agree, and while I understand some issues webmasters have with content getting pinned, I would encourage most people to embrace getting site content pinned. I have two different sites that have had sales figures jump 4X in the last three months from Pinterest traffic.