I would be hard pressed to have any opinion on the legal basis of all this, and on the differences between copyright and trade mark. But, as a customer, I expect someone who sells an outfit who looks like a well known outfit to tell me about this lookalikeness before I purchase the item. (and it's not just DAZ, BTW). For instance, I had no idea that this outfit for Aiko was a lookalike from a game. I learned this from this thread. I decided to buy it anyway, but now I know that I must not use these clohting items just as they are, or else I run the risk of producing a lookalike. With this information, I could make an informed decision, which is the basis of commercial relationships (or at least, it should be...). I would have appreciated to see this information in the promo page.