I think we all know who the last one out will be ......... Ive got the keys, remember?
Its something we (the staff) noticed a fair while ago, a lot of the dropoff is due to FB but theres a lot of other aspects too, not least that a 200SX used to be someones pride and joy, its now a 2nd, 3rd car or even just a drift slag. ITs interesting for me as Im on the 350Z forum and also babybmw (1 series bimmers) - 350Z is starting to drop off now, babybmw is still gooing strong but 90% of people posting have 140's or M2's, there arent a lot of cars more than 4-5 years.
Both forums lack people getting their hands dirty or treading a new modification path, babybmw is definitely worse than 350Z for it and for general discussion about non car stuff FB is the way these days. There might be a return to forums but I doubt it TBH.