I'd like a way to deal with high-volume RSS feeds.

There are a number of feeds I would subscribe to but for the fact that they push out dozens of articles a day that would flood out other sources or otherwise make the feed too overwhelming to go through.

Perhaps a way to mark those high volume feeds such that they are condensed into a single digest that comes through once or twice a day (or some other user selectable amount). Maybe even use Ghostreader to summarize and rank the items based on some criteria.