"Why should we use FeedCreator? Why should we replace about 70 lines of
code with several hundred? I'm yet to be convinced that FeedCreator
and friends can provide anything that a couple of hooks and a bit of
API can't.

Sure, it gives us more feeds. Do we need more feeds? Is there a real
requirement for lots of really obscure feed formats? Plugins can quite
happily define their own feed formats with enough template tags (and
my up-and-coming API to WP_Rewrite)"

I just don't see the point. 

"I mean, if we aren't supposed to be looking where we can usefully apply
pre-existing, tested open-source code to enhance WP, just because existing
code is (potentially) smaller or faster, then using Magpie (and Snoopy!),
TinyMCE, dbx, Squirrel's pop3, Inutio's xmlrpc, and other libs sure have
been bad choices! Wink "