@technomancy The Atom feed on your website is a bit broken; it has doctype declarations in the HTML which makes it not-well-formed XML. E.g.
<title>185</title>
<content type="html">',
<!DOCTYPE html>
<html lang="en">
<head>
Actually, all the HTML tags, etc, should be escaped: RFC4287 3.1.1.2.
@technomancy Your Atom feed is broken in a new and exciting way: missing the close content and entry tags for the first entry element.
Also, I notice the published and updated elements have one digit day-in-month values. The Atom spec references xsd:dateTime https://www.w3.org/TR/xmlschema-2/#dateTime for this which says two digits.
@edavies that was, uh, totally on purpose. you know, to see if you were paying attention. you passed the test, congratulations. =)
just kidding; thanks for the heads up.