I think the idea here is that if you think it would be interesting to readers then you post it. If people like it then they vote it up.

Quick newbie question: Does a post require a certain number of points to make it into the RSS feed? I noticed that not all threads from HN make it into my Google Reader subscription...

I think the RSS is the same as the front page based on a casual perusal of the source code:

  (newsop rss () (rsspage nil))

  (newscache rsspage user 90 
    (rss-stories (firstn 25 ranked-stories*)))

  (def gen-topstories ()
    (= ranked-stories* (rank-stories 180 1000 (memo frontpage-rank))))


  (def rank-stories (n consider scorefn)
    (bestn n (compare > scorefn) (recent-stories consider)))

It's probably a fair request to ask for an RSS feed of all stories. I just don't know how many people are interested in that.

i say go for it. there have been many similar posts in the past.