Nick Bradbury picks up on the RSS UI problem David Winer has pointed out:

"Dave Winer proposes a solution to the problems caused by the lack of a standardized method for feed subscription. While I would love to see these problems resolved, with all due respect to Dave, I can't say I'm wild about the idea of a centralized subscription server. This seems too complicated for something called Really Simple Syndication, and I imagine many users wouldn't want their subscriptions stored on someone else's server (or wouldn't be permitted to by their employers)."

Nick instead proposes another solution.

Another reason for IE to get into the RSS game?