I'm not so sure about that. Use, host, store, reproduce are no-brainers. Modify and create derivative works are for thumbnails, OCRing, converting to other formats for displaying. The rest are for sharing with friends, or the world, right?
Edit: Read stuartmemo's The Verge article if you're interested, it's pretty insightful.
Edit: Read stuartmemo's The Verge article if you're interested, it's pretty insightful.