I like the sub forum Idea. If i'm trying to find the thread for my company I can just go to that sub. Before I had to scroll through 5 threads about logbooks/luggage/where I keep my logbook and another 6 posts about Envoy and how great their flow/upgrade is.
Also the megathreads where getting pretty ridiculous. Someone asks a question and the answer was "go look in the skywest thread...been answered there dozens of times." Where?? The thread has like 7k posts! Hopefully with segregation people will be inclined to start new thread topics and diversify the information.