I love the tree view that BYOND has for these forums. They are, by far, the best forums I have seen. But this tree system does have a rather large problem with large threads.
Rather thank 89ing the whole tree view, I recommend a thread compression system. If a thread has have n replies, it automatically gets compressed, much in the same manor as threads that are moved to another section.
I request this because I am missing many posts because of certain large threads that don't seem to want to go past the first page.