I think every RSS reader will eventually support RSS discovery. The little XML buttons on peoples websites will eventually be obsolete as sites more and more include the necessary
Heres how things work for me now. When Im at a site I want to subscribe to, I copy-and-paste its home page URL into NetNewsWires subscription dialog. The app then searches for the RSS feed for that site. If it finds it, great. If it doesnt find it then I delete the failed subscriptioneven if the site actually does have a hidden-away RSS feed somewhere. I dont go looking for it manually: its too much trouble. And thus I dont read that site.
But of course even the above scenario is too many steps: ideally, when Im at a site I want to subscribe to, I should be able to choose a menu command to subscribe to that site. (Or maybe its a bookmarklet, or a contextual menu commandsome Subscribe to Site command thats always in the same easily-accessible place.)
Radio UserLand and AmphetaDesk (and perhaps other RSS readers) have a great feature where you can click on an icon on a page that then subscribes you to that site. Thats a hundred times better than having to hunt for an RSS feed and then copying the URL into your reader app. But its still not quite the best scenarioafter all, you still have to look for that icon, which may or may not be there. And you have to run an HTTP server on your desktop, which you may not want to do or may not be allowed to do.
To re-iterate: no human should ever have to find an RSS feed. Thats the kind of thing computers are good at. No human should ever have to see an RSS feed except out of curiousity (or if theyre debugging their own software). RSS should be completely hidden. [inessential.com]