First thing: You /about page currently asks you to log in. It would be cool if you didn't have to do that. Beyond that, it looks interesting, especially if you

First thing: You /about page currently asks you to log in. It would be cool if you didn't have to do that. Beyond that, it looks interesting, especially if you can (or do) use some sort of Fuzzing tool: messing with the inputted code to make sure that the tests now fail. I think I understand, but also a page that talks about how this is different from things like Codility would be awesome. (I think I see that this uses TDD and judges the quality of the _tests_, where as Codility judges the quality of the code(??)).