There is a lot of specific 550 stuff in the other threads of the multi-rotor forum. The lounge is a general discussion area and, as such, it ends up being a lot of 'stream of consciousness' posts. It is getting big and there are lots of nuggets in there but isolating the 550 for its own forum probably won't fix that thread.
It helps to have kept up with it from the start and I feel your pain. Although I have kept up, I can't imagine trying to wend my way through it from the start. Some posts are repetitive (same question asked multiple ways) and others are irrelevant - it is just lounge talk with some great stuff thrown in.