Mainly because I don't read rational fictions. I can't call myself even sufficiently rational so the whole point of a rationalfic would be lost on me. I've read HPMOR. It was nice. I just felt that I've missed something on a different level because it seems (to me) to have a large amount of praise.
Hey, everyone! I want to share with you a project I've been working on for a while - http://rationalfiction.io.
I want it to become the perfect place to publish, discover, and discuss rational fiction.
We already have a lot of awesome stories, and I invite you to join and post more! =)