Ooops Tumblr and Pinterest! Better get that metadata back :)

The lesson of the web is to keep the metadata whenever you can:

District Judge Gonzalo Curiel found late last month that e-commerce vendor CafePress.com was not entitled to summary judgment on a claim it hosted and facilitated the sale of copyrighted photos, denying a request that an infringement case be dismissed under the DMCA’s safe harbor provisions.  The decision rested partly on the fact that when users upload photographs to CafePress.com, the website’s automated process strips the images of copyright information imprinted as metadata.