OK, I'm not in charge, and I'm only giving my advice to take or leave. I love these forums, and don't care if they ever change.
But here's what I'd do to clean it up a bit:
Kill the eco-sphere forum. It isn't used.
There are two places labeled to discus bromeliads, they should probably be only in the semi-carnivorous section.
Combine all the non-cp plant sections into one forum, with the exception of "Orchids", which seems to warrant it's own topic.
Combine the aquarium sections.
That's about it. That's all I'd do. Otherwise, it seems to be working great! Thanks again to pft for these wonderful forums!