I believe the consensus was that it was not a big deal for www.php.net to have the server status page up. The original link for that news item was http://php.net/server-status. However, not all sites are like php.net which is used mainly for documentation (it would appear). That said, a status page leaking IPs or sessions (PHPSESSIONID) for a private forum, government agency, etc, could be a different story.

Edited: Typo