At the moment I'm seriously thinking of endeavoring on an larger project of fair use reform -- really getting serious about explicit fair use tagging and reviewing and things like that, making things a bit easier to understand for the many users who want to upload content but don't really want to take the time to learn U.S. intellectual property law (the basics of which are much simpler than they have a reputation for being, but as such is still not very interesting to most). Anybody interested? Good idea, bad idea, waste of time?
Well, you certainly have your work cut out for you :) And new untagged images are still being added. I just came upon this:
http://en.wikipedia.org/wiki/Image:Holler.jpg
Earlier today this had no licensing information. I added {{albumcover}} and {{fairusein|Holler}}.
Your plan is a worthy one.
Regards, Haukur