How is PredictionBook for sharing evidence for one's predictions, back-and-forth discussion, logging 'categories' of predictions, detailed statistics (such as calibration changes over time, more granularity than 10% increments, etc.) and so on? Are there any specific features of PredictionBook you would recommend to me?

I ask because:

• I want to participate in readable discussion as well as log my predictions; browsing as a not-logged-in user, PredictionBook appears to have a much less readable presentation for discussions.
• I often have domain-specific prediction techniques and would want to check my calibration for each technique (and each domain) as well as overall. (To take MOR predictions as an example, I might make some predictions based on a feeling of "this looks like foreshadowing", others based on looking for themes, still others based on knowledge outside MOR itself, ... ) Come to think of it, both domains and categories can also overlap, but I still want to have that kind of feature available whether I make the graphs myself or not.

I do intend to check my calibration on my MOR predictions once MOR ends, regardless of where I put the predictions up.