I wish creators offered trending RSS feeds with a new title & guid every time the views or comments/interactions double above the norm.
RSS Feed Best Practices
10 | RSS Feed Best Practices ~~~
37 | RSS Feed Best Practices ~~~~
Many already have the comment count on hand and it's not really respam in your combined feed as you get fresh data at the old position. The ~ just lets you search for hottest things when you are pressed for time as most search boxes require at least 3 chars.
This sounds like it would be better as a reader feature than a feed feature. However I am not aware of any extensions for providing this information to readers.
A simple proposal would be something like <comments count="23" last="TIMESTAMP"> and <score>72</score>. Then the reader could re-surface these items to you if they pass particular thresholds.
Of course there are some details such as ensuring that entries with recently updated comment counts appear back on the first page (or that old pages are scanned for updated entries).
Also I think WebSub doesn't work here because it excludes entries that have been seen before (which won't be an issue for your original proposal).
