I don't like the new forum structure, layout wise.
The super categories should not be clickable, let alone possible to post in. Why would you be able to post in General when there's General -> General chat? Thread in those kind of limbo forums tend to get overlooked, anyway, because all people see are the sub categories. At least, if there are only a few threads.
The sub categories should be the prominent items in the overview, not the super categories. They should also be "expanded", and show info like latest thread, instead of showing latest thread for the whole super category. Basically how the current/previous WoWAce forums look. The super categories work as headers, but the sub categories are the real content.