I JUST posted a video about my problem with Pinterest and Tumblr (AKA: How to attribute photos properly), where I also show photographers how they can find people who are misusing their images.
That’s a MAJOR issue with Pinterest: Users don’t understand that it doesn’t matter who originally PINNED something. The attribution should go to who SHOT the image. If you have anything to add/want to discuss. Feel free to post a comment below.