I'm sorry you feel you are being singled out, but you are not. The TOS states "Posting of commercial images/links is limited to active vendors and products in the Renderosity Marketplace.", this includes links. I'm unsure how much clearer the TOS can be for you. Linking to "stores" may only be done by Renderosity vendors. Linking to other marketplaces are not allowed. Please think of it this way, would you go into a store and tape a flyer for another store on its door? In most cases no one would.

Also, no we do not police sigs, but if it is brought to our attention we will contact the member about the links.

Hope this helps clear things up.

_____________________
.::That which does not kill us makes us stronger::.
-- Friedrich Nietzsche