I think the reason the chat box is under utilised is because of its positioning right at the bottom of the home page; I think most people who visit don't scroll that far, usually clicking 'new posts since last visit' right away unless they're starting a topic.
On an old forum I used to frequent, there was a 'Who's chatting' infolet right at the top of the website under the forum banner/controls, listing anyone in chat along with a link to open the chat box in a new, small, window. That was on a different platform to this site, but it was fairly simple and made a big difference to chat usage. Maybe it'd work here?
On an old forum I used to frequent, there was a 'Who's chatting' infolet right at the top of the website under the forum banner/controls, listing anyone in chat along with a link to open the chat box in a new, small, window. That was on a different platform to this site, but it was fairly simple and made a big difference to chat usage. Maybe it'd work here?