[barbierocks]

1. That's why we added a point system, but I agree the variation in difficulty is pretty wild.

2. See my comment above - comparison is a tough problem right now, the website is pretty simple. We'd like to improve it though!

[olooney]

I think it's a great start - I'm a big fan of typing games like TyperA, and one of the things I enjoy most about blogging or answering questions on stats.stackoverflow.com is formatting mathematical in beautiful LaTex. It just needs to be just a little bit more polished overall to be a really compelling experience.