Oh! I thought you were going to implement a single feed for all comment threads. That's far more useful to me.
I don't use an aggregator application, per se. I set up LiveJournal aliases for RSS feeds and add them to my friends list. It'd be tedious for me to create a syndication and add a new friend for each topic's comment thread, only to have to remove the friend later on when the thread died.
But regarding the articles feed... I noticed you started adding the date to the post titles, but it seems there's support for an optional data field on the RSS feed for the publishing date/time of the articles. According to this here http://www.devx.com/xml/Article/10790 the field is called Pubdate, but you'd better check your sources.
My feed aggregator sorts feed content by publishing date, but since your feed doesn't include that information, your posts get sorted out by the date/time my aggregator visits you. This means all of your posts can end up with the same publishing date when the aggregator recycles everything.
* The hyperlinks work like a charm. Cool.
* The time stamps seem all sorted out. Excellent.
* The markup doesn't seem to be entirely correct (e.g., see the naked tag in this entry).
* The subjects in lumpley_all refers to the topic number but not the topic subject, so it's hard to tell what the topic is without clicking back to anyway to read it. I'd prefer to see "2005-07-20: More RSS, Comment #8 by Vincent" and have the article number and datetime left out of the subject entirely.
Thanks for even entertaining these suggestions. I really appreciate all the effort you're putting into this!