Most stock photography companies require that models sign a release to prevent legal problems from arising due to the photo. In this case, it presents a proble

Most stock photography companies require that models sign a release to prevent legal problems from arising due to the photo. In this case, it presents a problem if you photograph someone and Instagram sells that photo without a release. Instagram or the third-party that buys the photo could be liable as a result. I'm surprised that Instagram's lawyers didn't consider this. http://en.wikipedia.org/wiki/Model_release http://en.wikipedia.org/wiki/Model_release