What I'm advocating for now is voluntary compliance, for the following reasons (and nobody has tried to address #3 yet): It's a proven system of record keeping that verifies information like names of subjects, stage names, date of birth, name of photographer, consent (implied by completing affidavit), and the date the photos were taken. The legal responsibility for the accuracy and content of 2257 records remains with the record holder, and personal identifying information of the subjects of the photos (and the legal responsibility) remain off-wiki. It fulfills the licensing requirements of Creative Commons, saying that our images must be made available for commercial use, however currently our pornographic images CAN NOT be reused legally in the US for commercial purposes because they lack USC 2257. This falls way short of our "free content" ideals (as well as Commons:Licensing). All primary producers (photographers) and secondary producers (uploaders) of pornographic images in the US must keep records, even if the images were uploaded to Commons by using a pseudo-anonymous username. For this reason, sexual content transferred from Flickr without 2257 information should not be accepted.