In an unrelated story, there was an image hosting site that had its directory listing enabled. It was probably done by misconfiguration. But it might as well be intentional. If you knew where to look, you could guess its directory structure and find all images that were uploaded. There were questionable images of minor that could be traced back to various websites. Those websites were hosting CP content and would go as far as providing webcam "service" using female children. It was reported to the authorities. But I seriously doubt they would do anything about it.
Edit: removing inline display of image in quote.