Based upon what has already been established as a general practise, Zygote, the "master modelmaker" sells their models without any further binding requests for "some of the money" should it be used in a commercial rendering. This also seems to be the practise at the Poser stores- purchasers get to use the models in commercial renders without any other fees. Just DON'T sell or re-distribute the original meshes or textures. So it would seem fair and logical that anyone posting a model as "Free Stuff" is making a statement that it is free. When Zygote does this, it still states NO selling or re-distribution, etc. This seems to be the prevailing practice. So if a modelmaker wants "some money", a fee for commercial use should be stated in the readme file- like $15-$25 since this seems to be the general price range (more or less) This gives any commercial renderer the option of paying a known fee and avoiding any futher legal hassle, rather than a totally unknown amount. It is very unlikely that a model will show up in a major Hollywood production anyway. I doubt that Pixar would be downloading Poser models for their next animated film. Most renderers are not making big money from Poser model renders, and those that might be are probably doing extensive Photoshop post-production on them to the point that they would be hard to identify anyway.