I often encounter images in Flickr where the uploader claims to reserve copyright (or more likely, has simply not changed the default) but where the images are scans of long-out-of-copyright works. I can download them, and upload them from my hard-drive, but that's tiresome, and does not bring in their metadata,
Trusted users (however defined and flagged) should be able to use the Wizard to import such images, stating an applicable reason for doing so.