I have been to several web forums, and I've always found DD/HB to be rather tidy and easy to navigate. I think some of the sub forums get a bit over shadowed by its parent forum, but for the most part, I think you are looking too deep into it. I have been to confusing forums, and Hondos isn't one of them.
I think the front door could merge Suggest Box and The Gathering into Town Square, and put TS with Hells Kitchen. Barside with Philosophy Culter Science and Art are all broken down beautifully, and Entertainment couldn't get more simplified.
Just my 2 cents.