That's certainly a valid point -- we should not be dis-integrated as persons.

But it seems to me we should still be prudent online. We are not morally obligated to let everyone know our thoughts on everything.

In real life, I share some things only with my wife. Other things I share with close friends. Still others with friendly acquaintances. But it's wise I keep a certain distance with most coworkers (especially HR!). And I'm especially guarded against those I might consider enemies who could look for ways to "get" me based on something I share.

I don't meant to say we should be deceitful or two-faced (or three- or four-faced); but I'd say it's wise to compartmentalize our audiences based on what we choose to share. I'm suggesting we pattern our fake digital social life after our real-life social life.