I applaud you for taking on such a great cause. I have written quite a bit about academic integrity issues, and I believe more people need to be thinking about it for something to be done.

With that being said, you're assuming people are coming to the site to cheat as you say several times "This site is not for cheating." You should probably assume people come for good purposes so as not to turn them off. Your job is to provide the technology, not criticize worst case human condition scenarios.

I won't comment specifically about the design because I don't have an eye for such things. However, the name and the font ("uber") sort of confused me.

Otherwise, it seems like a cool concept. How are you differentiating yourself from Scribd?