To speculate, it is possible that Pinterest will take advice and actually become respectful of copyrights and take serious steps to educate their users. It is also possible that Pinterest intends to unleash punishing legal challenges should any creator(s) dare to take them on.
If creators are hoping to continue making a living off their images and protecting their copyrights against the actions of Pinterest's users and those of present and future Pinterest-clone users, they must make their voices heard - they will have to scream at the top of their web-lungs. Begging "pinners" to try to understand their plight or educating "pinners" (something Pinterest seems loathe to do) on how pinning may hurt creators' livelihoods.
There are some that think creators have already lost the battle, and ought to give up their copyrights and associated livelihoods lest they become the "bad guys."
I’m wondering if everyone has come to the same conclusion: no company is ever going to bring a copyright infringement suit against a Pinterest user. [...] Sending a Pinterest user a letter instructing them to remove your copyrighted materials and accusing them of copyright infringement is [...] a total slap in the face.While Ms. Mc Curdy sides with the popular internet behemoth, the small artists continue to hurt: Ellen Ward, who publishes wonderfully spontaneous drawings, is another David against the Pinterest-Goliath.
Do we have a slingshot?