Last night I made a small PHP script to download all of susandennis's public pictures from her old Buzznet photo gallery. She now uses another service but wanted to pull those pictures forward and keep a local copy of all of them. They didn't seem to provide an easy export method but all of the original images are made public.
This script will pull the first photo listing page, determine how many pages there are, then download each listing page and use the thumbnails to determine the original image on their servers. For most, if not all, images that will still include any EXIF and other internal metadata attributes.