I've implemented a new comments management system for authors.
The old one that you access from the stats is still there, but now there is a system that lists all comments by date, and tells you which story it's for. Allows you to reply, block, delete, etc...
It's very bare for now, but depending on your suggestions if they're doable, the system will evolve.
To get to it, click 'Authors/Editors', there is a new button titled 'Reader Comments'.