I can't say that it has really done much positive for the forum (vwdiesel.net); if anything quite the opposite. I'm an admin over there. Since the Facebook group we've seen a reduction in forum traffic for one. Searchability with Facebook is awful - the same questions just pop up again and again, no previous threads, no history, nobody can easily find anything so they just ask. Again. And again. And again.
We definitely have a ton of people, but the signal to noise ratio isn't great, and the "tribal knowledge" level is pretty low.
Sent from my XT1097 using Tapatalk