Quote - It doesn't have anything to do with image quality, it only has to do with some applications of printing the image.  You can just change it in an image editor e.g. Photoshop.

 

So then what your saying is that setting really serves zippo purpose for those of us that use regular monitors. 

When I render an image out of Poser. It arrives in Photoshop as 72ppi. When I change the ppi to 300 the image clearly becomes changed. The jaggies get broken down to a finer detail of jaggies. Seems like that if we were able to literally render to 300ppi that the image would be less jagged to start with and cleaner than converting to 300ppi after the fact.