Does anyone know how one would go about suggesting a new feature for predictionbook.com? I think it would be better if you could tag predictions so that then you could see separate ratings for predictions in different domains. Like, "Oh look, my predictions of 100% certainty about HPMOR are correct 90% of the time but my predictions of 100% certainty about politics are right 70% of the time." Also, you could look at recent predictions for only a specific topic, or see how well calibrated another user is in a specific area.