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My pleasure! Exactly - as Keri explained, they try to crawl the most valuable links. By linking to the correct pinterest page, you will signal to MOZ (and google) that your Pinterest profile is worth crawling/indexing, and it will gain more page authority as well.

no - chicfamilytravels.com/ is do follow. Please refer to - http://googlewebmastercentral.blogspot.co.uk/2013/02/a-reminder-about-selling-links.html