“Next time someone tells you Atom 0.3 is invalid because the validator says so, point them to this page. The validator is full of it, because it doesn’t reflect reality.” If Robert had comments, I would say “I never suggested Bloglines was “best-effort software development” (though I do love it and use it myself) but merely that it has an overwhelming market share. We’ve been tracking feed stats on WordPress.com and Bloglines and Newsgator online both dominate. The Web Standards project never casts stones from an ivory tower, they’ve always advocated practical standards for pratical benefits. Ben’s comment was akin to someone saying that the site sucked because it used XHTML 1.0 instead of 1.1, or if the validator decided to instantly “deprecate” all sites using HTML 3.2, 4.0, and XHTML 1.0 when 1.1 came out.”