Remember folks, this is a free and open site. Anyone in the world can sign up for a username and password. Renderosity does not charge a member fee, or charge a viewing fee per picture for the galleries. Renderosity cannot act on its own against an art thief unless it can show loss of income. This means they would have to show income from the viewing of your work in order to protect it and sue. Are you willing to pay a monthly membership, or fees per view in the galleries? If not, it's up to you to police and protect your own interests. Renderosity cannot act in your interests if it does not even know what your interests are (ie a statement of your copyright wishes in writing). Renderosity also would be insane to act to protect your interests to it's own loss by paying lawyer and filing fees on your behalf or even long distance to an offending IP. What's in it for Renderosity if they can't even recover expenses? Are you willing to sign over publishing rights to all pictures posted in the galleries in exchange for this protection? You have here a free site with a large bandwidth where you can be seen by hundreds of viewers without taking a hit on your own IP and paying a monthly fee. You seem to think they are Michael Ovitz and you are Tom Clancy. They are not visibly making any money from your work and any actions they can take cut into their overhead. If you want protection get picked up by a real publisher or post on a pay only site.