Great post and great idea! As a graphic designer, i never upload full size photographs i take. In photoshop, its really easy to downsize from your default 72 inch wide photo down to say, 10 inches at 72 dpi. It will surely stop anyone from using it in production. While photoshop is expensive for just resizing images, theres sure to be free programs that can perform the same basic function. Check out my posts! I recently blogged a photojournal