DDPO pages are not valid HTML. E.g.
<http://validator.w3.org/check?uri=http%3A%2F%2Fqa.debian.org%2Fdeveloper.php%3Flogin%3Djwilk>:

1. Error Line 169, Column 73: end tag for element "B" which is not open

    … type='text/javascript'> collapse(1,"<b>Display configuration:</b>"); </script>

2. Error Line 201, Column 55: end tag for element "B" which is not open

    <script type='text/javascript'> collapse(2,"<b>Help</b>"); </script>

Clicking through from the validator link leads to
http://www.htmlhelp.com/tools/validator/problems.html#script which notes
that "[t]his is an unintuitive quirk of SGML for elements defined to
have CDATA content" and suggests using "<\/b>" for the closing tag
instead.

Regards,

Adam