I like and use Aha! scorecard to prioritize features in my product and release backlogs. However, quite often I need to explain other stakeholders (and record for myself) why I'd go with one or another score. It would be great to have one common or better separate comment fields under each score where the user would write down a short justification for the given score number. For example, if I'd set 10 for 'Effort to develop', I could write in the comment something like: "10 is because we don't have required skills and resources in the house to implement this feature."
Thank you for your idea. In situations where additional background is needed on a feature's score, we would recommend adding a comment directly to the feature itself.
Given this capability and other priorities, we are unlikely to implement this idea at this time. We hope you can understand.