I read somewhere about a proposed (or maybe actual) project where the Block Chain is going to be used to BENEFIT content providers by providing a data base of work from the stock agencies, making it a snap to track down illegal uses! People need to be educated. They cannot use the works of others to provide income for themselves without explicit permission. (Steemit is NOT FACEBOOK!) Most times that permission would need to come from the photographer AND the agencies involved. Seeing as many times a photographer has the images on multiple agencies, the likelihood of getting a free pass is highly unlikely! Unfortunately, Steemit has opened a whole legal can of worms!