First of all, welcome to RP figrsk8r. For those of you who might not have seen the original post, I'm including part of it for discussion.
Originally Posted by figrsk8r
DPI no longer means anything, its the size of the droplet that determines the quality of your photos. I produced one photo from a 72 dpi downloaded image (to use as a color proof) that a professional sports photographer thought I had taken on my camera and had printed digitally.
As I understand it, and I could be wrong, DPI refers to dots per inch, and is a printer software setting. PPI refers to pixels per inch, and relates to the number of pixels per inch in the image. Now on to the question, and I'm not trying to be a wise guy, just trying to understand the post. It seems as though the original quote is saying that DPI (printer software setting) no longer matters. It also seems as though the lower resolution of the image (72 dpi downloaded image) doesn't matter (although the quote doesn't specifically state that). This could result in major savings in file sizes, making everything run easier, and saving storage space for the files. But this goes against everything I thought I understood. Comments, anyone?