<link rel="stylesheet" type="text/css" href="http://ycombinator.com/news.css">
<link rel="shortcut icon" href="http://ycombinator.com/favicon.ico">
Also, this will make a good reading: http://www.w3.org/TR/html4/struct/links.html#h-12.3"Although LINK has no content, it conveys relationship information that may be rendered by user agents in a variety of ways (e.g., a tool-bar with a drop-down menu of links)."
Imagine for example that on the Chrome home page, where sites you visit often appear, Chrome also was following the RSS of these sites in the background, and listing new news items for those sites on the home page, all without you having to do anything.
There is infinite possibility here for browser vendors to make browsing quicker, easier and more intelligent and RSS is a key part of that. The browser vendors are not interested in exploring this avenue and as such everybody is stuck doing the same stupid routine every single day. This is dumb! Our computers should be smarter than this!
That's a hell of a good idea actually. Having a count of items that popped on a website since your last visit would be a really useful information.