Well, are we basically in rough consensus about this now? Here's an updated patch which just makes the priority increase 20 instead of 30.
--- debian-policy-3.5.6.1/policy.sgml 2002-03-14 13:17:48.000000000 -0500 +++ debian-policy-3.5.6.1.hacked/policy.sgml 2002-08-06 14:09:01.000000000 -0400 @@ -6798,6 +6798,15 @@ configuration, add 10 points; otherwise add none. </p> </item> + <item> + <p> + If the window manager complies with the <url + id="http://www.freedesktop.org/standards/wm-spec.html" + name="The Window Manager Specification Project">, + written by the <url id="http://www.freedesktop.org" + name="Free Desktop Group">, add 20 points. + </p> + </item> </list> </p> </sect1>