As far as posting, one of the good and bad things about forums that have been going for a while is that most questions or discussions have already taken place. If I have a question, I try to find a previous conversation on it in the search and if my question is answered by reading it, there's no need for me to post anything. That means information is shared, but reduces the amount of interaction necessary, as opposed to FB where conversations get obscured with discussions about Jesse's brand of choice for hair gel and stuffed cheeseburger recipes five minutes after they get posted.