I think it's very tidy to make the distinction between copying art to enjoy it as a consumer and copying work to pass it off as your own for economic gain.
That distinction has been made by the Creative Commons licenses. Copyheart seems like a lovely idea, but it's trying to solve a problem that CC solved a long time ago.
It's also trying to solve a problem CC created -- the proliferation of mutually-incompatibly licensed works whose license terms are so overly complex (and so poorly presented) that most people using them don't really understand what they do. Unfortunately, the "copyheart" thing takes it too far in the other direction, resulting in some potentially very legally problematic situations for reuse.