Speaking as someone who has been in computing for thirty years, and as been on the net pretty much since its inception, I think you make snarky or dismissive responses to Dave's reasoned analysis at your peril.
For someone who is mature and has some level of self-possession, ANY technological bauble is a modest threat. Yeah, I can check up on an old college friend via facebook. There is little chance I will get sucked into playing Farmville (I think that's what it's called).
But look at younger people, who have no outside point of reference. They never knew the world before social media. That was a time when I saw fellow college students at my blue-collar state university reading books on the bus - which were not even assigned in class! When social contact meant hanging out at the bar in face-to-face conversations, and where an insulting remark could get you a punch in the face.
Two kinds of human interaction have been obliterated by social media - direct interaction with our fellow humans, and interaction through space and time via books. A published book, on paper, even if the product of a less-than-brilliant author, reflects a significant economic investment and a heartfelt effort on the part of the writer (and their editor). The process of making printed books presented an automatic filter against at least some of the stupidest sh-t that people can spew out.
The result of social media has been an acceleration of the coarsening of our society. The lack of direct human contact means that you are always conversing over a wire with a straw man. If you have some level of maturity (probably the case with most RFFers) you can "read" the person on the other side, and have some semblance of a human conversation. If you have been largely isolated from bonafide human contact, that straw man is either a reflection of yourself, or a cartoon enemy, or some other fanciful projection.
If you want to say "err whatever", or "-1" to that, feel free.
Randy