Gosh, I have literally had a "Post Reply" message to this thread open and flashing at me for 3 days now. I wanted to read all the articles that were linked to, all the fine print of Pinterest's policies, and form a truly educated reply. But guess what? I can't! But, I know how my heart feels:
-Sorry that there are shitty people out there that copy things and claim them as their own.
-Sorry that nice, decent, loving, giving people end up getting the short stick from said shitty people.
-Sorry that the world can be such a greedy, grabby place which leaves the decent people with bad tastes in their mouths, having to lick wounds and second guess their good natures.
-Making sure images link back to the proper owner/source is good manners and practice, giving credit where credit is due.
Also, I've read this Pinterest paragraph 50+ times, and I think there is a piece that may be misinterpreted or overlooked:
"By making available any Member Content through the Site, Application or Services, you hereby grant to Cold Brew Labs a worldwide, irrevocable, perpetual, non-exclusive, transferable, royalty-free license, with the right to sublicense, to use, copy, adapt, modify, distribute,license, sell , transfer, publicly display, publicly perform, transmit, stream, broadcast, access, view, and otherwise exploit such Member Content only on, through or by means of the Site, Application or Services."
Pinterest has to operate within the law, so they cannot claim rights to the items being pinned. I believe Pinterest is saying that they have all the blah-blah-blah rights to stuff pinned on their site in the sense that they can use all of the pins within the context of Pinterest and Pinterest's business dealings. I believe the claim they are making is that it is legal for them to have these third party items pinned on their site. I don't think they are talking about selling individual art images or having T-shirts and mugs printed up with people's artwork. And in an attempt at CYA (cover your ass) they are saying that if anyone else uses the pinned stuff for anything other than personal use, that copyright infringement is between the actual owner of the pinned item and the naughty thief.
Anyway, that's what I believe they are saying in all their legal mumbo-jumbo.