Since you asked if it was something outside of possibly copyright, I would suggest more funding for artists in the first place so that they don't have to be working a bunch of other jobs and can maybe be more informed and spend more time being aware of their rights and protecting their work. That would probably help things out in a very general way. I realize it's not getting at the heart of things, but in general, artists get really tied up and can't necessarily devote enough time and space to protecting their craft.
On May 10th, 2018. See this statement in context.