--that the Facebook groups generally don't have the depth of knowledge that this site has in its database, nor the number of well-informed people.

There seem to be a lot of people on them peddling whatever cure-du-jour has recently been publicized; at the best those have limited success for some people in some circumstances, at worst they are snake oil.

I do agree that social media has absolutely cut down on the activity here at Neurotalk, but this is still a better place to come for analytic commentary and educated suggestions.