mslina2002 - 12:36 am on Sep 24, 2012 (gmt 0)
Well we don't know how much "social signal" we're getting out of Pinterest NOFOLLOW links. I suspect none.
Links are static whether NOFOLLOW or FOLLOW and are not a "social signal".
Facebook, LinkedIn, Twitter, Google+ Pages, Youtube Channel, and Pinterest links are ALL NO FOLLOW. Not just Pinterest. It's your interaction on those pages that creates that "social signal" and not the static links.