Those check boxes are really annoying - every time you have to log in again (if they restart things after a server upgrade for example) you'll have to go and check all those boxes.
It'd be really nice if they allowed you to check all with one click, or better yet just have something that says "I agree to all the <linked terms and conditions>" at the bottom of each upload page. It's OK to make the first time user really aware of the details, but it gets old...