To be fair I don’t blame facebook for the content its users post, it’s a tool - and provided it’s used wisely it’s useful enough.
I do blame facebook for the privacy policy flip, but I have my settings set very high.
For me FB is simply a means of monitoring people; family and friends who post updates and pictures to facebook. These are local people in the main, they know me personally, where I live, my real name - my ASL.
In this role my sister characterises FB as like small town / suburbia gossip, she said to me these folk know you any way, it that way for her, it’s a controlled means of managing her public profile in her community.
What is dumb is falling into the trap of too much information.
I’d liken that to those moments in polite company when a close and often elderly relative tells the ensembled diners too much information about you, them, or someone close to you both, and the hush silence of embarrassed suppressed laughter is deafening.
Properly used I think my sis is right Facebook is PR in the realworld community; satisftying the curiosity of small town life in my case - natural human curiosity in what the Jones’ are up to.
To me the kind of information put there, facts associated with your real world name and ASL is both a test of common sense and good manners - FB can hurt both your private life, and impact your job, but only if you let it; ( ref. Lamebook ) if wouldn’t say in say Church or in front of your Boss, you are better off not saying it on Facebook.