It appears that it is okay for employees at flickr to post photos that do not belong to them, but not ordinary users. Arabawy did, technically, violate the terms of service, but those terms aren’t always followed. I sense flickr didn’t want to deal with the consequences.
You can read the discussion on Slashdot.
You can view many pictures on imgur. You can download a pdf of all the photos. Links in the pdf will take you to min.us where there are hundreds more photos, courtesy of Anonymous. You can view them on Cryptome. You can download them from ge.tt.