Browser diversity and the Web.
Adam Argyle and Oriol Brufau wrote about how to do custom bullets with CSS ::marker.
Another good resource on both adding reply-to links and moving away from Atom feeds to RSS2 feeds.
Obsessing over numbers gets you nowhere.
A really good addition to an RSS feed could be a link to the commenting form or an email to reply to. Eric Meyer shared a simple function that you can add to your WordPress site for the same.
Before 1996 Candyland.com used to be an adult website. Hasbro won one of the first court cases over trademarks and domains and today it just redirects to Hasbro’s website.