If you think it's already difficult to chase your content on Pinterest's servers, imagine what it will be like when some of its clones start to become popular.
There are many ways to join them if you can't beat them - joining Pinterest and posting your pictures on it is the least imaginative and the least profitable.
There is better!
SEO Toolster markets a Pinterest clone script, reasonably priced at $749, with free installation. Cogzidel offers you Pinderful, another remarkably similar knockoff for just $299. The aptly named Pinterest Clones, produced by Social Curation Solutions, features a similar app for under $200.
These scripts are shockingly faithful reproductions of Pinterest's look and functionality. It's a wonder that Pinterest isn't suing them for... copyright infringement.
Some of the clones are already trying to make inroads with different target clienteles. Many have chosen to concentrate their efforts on a language and a country (this may explain Pinterest's recent urgency in trying to go international). Others are jumping on Pinterest's cast offs, and specializing in pornography.
Why not jump on the copyright-infringement gravy train, and run your own Pinterest? Call it "Pinfringe." It's probably a lot less work and more money than what you are doing now, something that is almost always true of dishonest work.