disqus_developer flag didn't seem to work...

Couple weeks ago, I put together a quick local drupal install to demo DISQUS comment discussions. First thing I did after installing this module was go to the settings and tick the disqus_developer check box to indicate testing...

<script type="text/javascript">var disqus_title = "Calais and DISQUS Demo Post";var disqus_message = "This is a blog entry about the OpenCalais web service -- a universal semantic &#039;tagging&#039; service for web content -- and the associated Drupal module.    The comments on this blog post are powered by the very cool DISQUS comment and discussion web service, and it&#039;s associated Drupal module!";var disqus_developer = 1;</script>

...shows the flag is set on the page, yet the comments are public on my disqus page. Isn't that flag designed to prevent this? Has anyone else experienced it?