Of course, in the past I would have suggested discussing this at the DAZ forums, but I've since learned that this is a waste of time. It's a very unfortunate comparison between DAZ and here. People will complain bitterly about unfairness or dubious practices at any site, but at least here there's a very good chance of a forthright response and even a remedy. If the artist has any problem with the terms, the artist still has the remedy of the legal system if s/he objects to those terms. However, by agreeing to those rules, whether or not they have any merit, the artist may find there's no remedy after the fact.