I would like to make a suggestion to help boost your community. Frankly, as a newcomer, I feel it's extremely fructured. There already are a lot of different boards, an then some have 5-10 sub-boards! But the real problem is that vast majority of them haven't seen any posts in months, if not longer.
I understand it might have made sense back in the day with a bustling community all across, but as it stands, it's just an extra communication barrier that is intimidating to new members. I'd highly suggest archiving all your sub-boards and just keeping the top-level boards. Heck, even merge those - out of the 6 top-level forums in "The Street of the Clerisy" there's only like 2 threads with any posts in the past week. I feel a single "Arts, History and Philosophy" forum would be sufficient for all the needs at the current participation level.
I know it's a huge thing to propose, especially from someone who doesn't know this community, but just thought I'd share my observation.