I'm going to add in one very interesting detail of my non-scientific evaluation of FB stock.
I was walking by my 16 year old's door and said "Hi"... she ignored me, staring down at the screen on her tablet. Next, a bit louder -- and with a tone letting her know I wanted a response, "Hi. Do you think you could tear away from Facebook for a minute to say hi".
Her response, "It isn't Facebook, I'm on Tumblr. Facebook stinks now."
That is the end of my report. My 16 year old teen who had risen and set like the sun to Facebook for approx. 3 years, now proclaims "Facebook stinks now".