This plugin adds the slash:comments tag [link by me] to RSS feeds, which tells feed readers such as Google Reader or Bloglines how many comments there currently are on that post.
Note: This plugin is marked as compatible with an outdated version of wordpress. But it is very simple and I think it will still work. Otherwise this should be an easy hack, so it’s worth the example.
- Slash Comments Plugin Page
- Ticket #4023 (Add slash:comments to RSS2 feed)
- Why RSS Slash is Popular – Counting Your Comments