Mahalo RSS Feed Generator

I was working on an RSS feed generator for something at Mahalo and whenever I do such things I go through the RSS 2.0 Spec again to see what elements I should add to make the feed as useful as can be for 3rd party developers. I noticed a little used item called which is to link to where people can post comments to the item. Sounds simple, but no RSS reader that I've ever come across will use this so I asked Dave Winer why via twitter and then 2 things happened

1. Oddly enough eariler in the day before any prompting from me, Dave added to Scripting News's RSS Feed
2. He replied to my question with this flickr link: http://flickr.com/photos/scriptingnews/1876196880/ and he couldn't have been more correct.

Come on guys, if your going to support a spec, support ALL of it!