TeledyN's Murphy runs one of the most popular open-source Linux sites (which he started in 1994). He was one of the first to offer an RSS feed in 1999 when Netscape introduced the format. By late last year, Murphy's website would run out of bandwidth by 8 p.m.
Murphy's problems arose because he, like many bloggers, included most of his site's front page, including graphics, in the RSS feed, allowing users to read his entries in whole without visiting his website.
In contrast, most news sites, including Wired News, want to bring readers to their websites, so they serve up only a headline or a couple of sentences along with a link to the full story.
I think the feature is valid but blog software should include something like the conditional get helps with the badly written rss readers.