Just found this:
http://hbddotorg.blogspot.com/
Looks like HBD has gone bankrupt and is moving from the commercial connection to a hosted solution... whatever that means. Basically, the well ran dry:
Date: Sat, 9 Aug 2014 19:56:25 -0400
From: Patrick Babcock <patrick.babcock at gmail.com>
Subject: HBD On The Move...
Greetings, Beerlings! Take me to your lager...
At long last, I've initiated the move of the HBD from its commercial
connection to a hosted solution. I will do my best to keep you abreast
of progress, but be aware that the HBD itself (the email list) may be
knocked out of commission while I wrangle the code to conform to its
new environment - I'll run both systems in parallel until either the
new server will run the scripts, or until the HBD coffers run dry.
Unfortunately, I'll have to whack the existing connection as I simply
cannot afford to run a deficit in the HBD treasury against my own
budget at this time. Hopefully, I'll be able to get the scripts
running under their new environment before that happens.
-p