Scoble has a better idea of where things are (and where they are going) than Dave Winer does. By a lot. Scoble wants to expand the playing field for RSS and syndication in general, without worrying about what it gets called or how it gets displayed on a page. Winer, meanwhile, is utterly fixated on the irrelevance that is the term "RSS" and the orange icon. Let me tell you - they don't add clarity. Slap an orange XML icon on a page, and hand an aggregator (any aggregator) to a new user. I've tried this - I've introduced this technology to a bunch of new people, both at Cincom and out in the wider world. You know what they do when they see an Orange XML icon? They click on it. If there's an stylesheet for that page, all they wonder about is why the page looks less glitzy. If not, they think they made an error, and decide that the XML icons are some geek thing that other people (i.e., people who aren't them) use somehow, for gosh knows what.
That's why aggregators have auto-discovery - so that Joe NewUser can just try to add any old page, and have a feed added for him. The key? The non-technical user neither knows nor cares that XML is being used, has no idea what that stupid icon means, and doesn't want to know either.