list post by stars

Hi, That’s not currently a feature of the plugin.

+1 for this feature.

+1 here as well.

Could a post tag or category be auto-populated with one-star, two-star, three-star, four-star, five-star?

You can do this as the ratings are stored as a hidden custom field

_pn_apr_rating

So you would have something similar to the following:

query_posts(‘orderby=meta_value_num&meta_key=_pn_apr_rating&order=ASC’);

??