From what I remember there have been several instances where people have posted other users textures. I think one original author had even signed an unmapped portion of the vicki texture and the thief had not even bothered to erase the sig.

I've had my own freebies show up as submitted by someone else on other sites. That's one of the reasons I don't formally post a lot of free stuff here or anywhere. Since the only thing I get out of it is recognition its a big deal when someone else gets credit. In the case of the other site the user got membership to the site and access to other peoples models. It was essentially as if the fellow had stolen money from me because he got value from my work.

If you post Battlestar, Lord of the Rings, Spiderman, or a host of other fan or free items with recognizable trademarks you open yourself and Renderosity up to serious legal action from people with deep pockets. If you post and download nude teen or infant textures you have comitted a felony in the state where Renderosity resides. Is it such a big deal that Renderosity checks what you post to see that it isn't stolen or illegal?