When we set it up, the intent was the it be a little more private, or at least semi-private, area to discuss topics and questions that are specific to website publishers.
Since it was focused on one specific group and wasn't intended for the general Ancestry user, we removed it from the general message board hierarchy.
It's not deeply hidden, as you can tell, but we wanted to encourage an open discussion with just the publishers and thought having it be a little more personal space might encourage that frank conversation.