Yes, I have not found a good RSS reader on the PC side, yet. I am wondering out loud if this is a feature someone should wrap around Mozilla because of the intimate tie between feeds and sites.

Yes, RSS feed quality is variable. I'm assuming this is due to the many versions of it. I used this:

http://feeds.archive.org/validator/

to make sure the RandsInRespose feed was solid. NNW is also groovy as it allows you to sort on article categories -- if they exist in the feed.