It is called “public domain”. I chose to post this low pixel on a public site. I have no control on what others chose to do with a piece of original art. I leave these choices up to those viewing thus as to how it will be used. There is always a way around things and if what I create helps another this is a good thing :). Had I been concerned about someone using it for personal gain I would not have posted the painting as I do believe that there are many good people in this world.