Ultra-Liberal RSS Parser and a RSS Finder App

Mark Pilgrim has written a RSS Parser and he defends himself as to why he made it so liberal by comparing it to the internet browsers: "Look at it this way: imagine you made a browser that only rendered sites authored in valid HTML or XHTML. How much of the web would your users be able to see? 1%? 0.1%? Less?" Agreed.

bstpierre.org extended the same script and made it web accessible as RSS Finder. Cool. But why does it return two possible feeds for our site. Hmmm.