I'm not sure that this can be taken as an indication of the program's capabilities: Consider that the lighting skills of the average Poser gallery contributer are usually not as elaborate as the lighting skills of those who typically post in the 3ds max or Maya galleries. Many chose to use Poser exactly because of that - they don't have to learn lighting to get the images they want out of Poser. On the other hand, people that invest several grands in high-priced applications often do that with the ambition of learning 3d and every detail that comes with it, and are thus much more into tweaking the lighting and render settings than users who are satisfied with whatever light set came with their pose. Just counting the number of images in the Poser galleries without shadows tells me how few users pay attention to lighting.