I do facebook, but try not to talk about cars in there, as it's destroying the forums that I love to frequent. The only forum that I go to now, which doesn't seem to have been affected is a bike one, which still has new posts in the dozens per day.
Hi, I don't do social media because I'm a reactionary old grump, this was being discussed in a roundabout way on another forum about the recently launched Diretribe with Clarkson and co being its ambassadors. The administrator of the forum said, I quote-
"Ultimately the lack of mobile usability will kill forums unless they adapt regardless of what happens with facebook/instagram etc. I don't just mean the ability to view from a forum, but easy navigation, easy posting, easy quoting, easy image uploading etc. all need to be improved if forums wish to continue, it is part of why I'm attempting to have different styling available on mobile, tablet and desktop devices (which is in the very early stages of work at the moment)."
Not that it affects me because I don't have a mobile, I told you I was a ROG.