It is a shame when a forum closes and all the information is lost. Facebook is centralising the internet into one place which isn't a good thing for anyone except the really computer challenged people out there who can't use Google or type in a URL.
I just checked our stats and the site has the same number of visits/visitors as 10 years ago but the page views and time on site is down. 5.5 million visits and nearly 14 million page views in 10 years!
FK has a ton of information, most of which is easy to find so I think a lot of people get help without needing to post or join the site.