I think keeping the geometry in the prop file would not prevent people from stealing it... after all, people can simply save out a new .obj file directly from Poser.

I was on Second Life a few years ago (before they added custom mesh capability) and there was a lot of stolen work there, especially skins. I remember one SL skin creator who was always going on about his work being stolen by other skin creators inside SL. Well guess what? It turned out that this person had himself been converting skins he had bought at Renderosity. ;)

I am pretty sure you can report things like that though when you discover them, at least that used to be the case.

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