Not down, but 403'd.
Cached version: http://webcache.googleusercontent.com/search?q=cache:aroundt...
Cached version: http://webcache.googleusercontent.com/search?q=cache:aroundt...
My guess is that the page is in fact down (probably MySQL is stopped), but that the permissions on the 500 error page are set wrong and thus Apache is returning a 403 as it tries to show the error page, instead of a 500.
The site appears to be password protected now so something definitely happened. Or the site just got overloaded and the author decided to pull the plug.
Another possibility is that they were advised by council to take it down, but it does no good to speculate.