The idea seems very cool.

I didn't create an account because it's asking for my email address when using my google account. Don't want more spam.

Also, some decisions seem more politically charged than necessary, like using "Donal Trump" as an example of an "Easy" debate opponent.

Finally, I don't know the SMS-style abbreviations are much appreciated on HN (u for you is the most annoying example in your introduction). I'm not sure why it's bothering me enough to tell you about it...