Why I Hate Tattletales or Facebook Etiquette

Twitter and Facebook are spaces for talking about life (so is this blog by the way) which often includes venting about aspects of your life including co-workers. I keep my FB private, check out my followers on Twitter, and don't use real names in this blog. If you are in my circle of friends and confidantes, it is because I welcomed you there.
Recently one of my co-workers - one who does indeed drive me crazy - was told that some unflattering things were on Facebook about her. Her feelings were hurt and no doubt it will impact their working relationship. Now if this person's profile was not set to private and s/he placed hurtful material out there for the world - well, that is just stupid. But, if they were talking to trusted individuals - then I call a party foul.
I am severely disappointed in the individual that would go out their way to point out hurtful information. It is just childish tattling and serves no substantive place. The correct thing to do would be to approach the individual who posted and request s/he be a bit more discreet. The object should be to spare hurt feelings not exacerbate them.
No, I do not work in a kindergarten - although sometimes it may appear that way. Grow up people, get a thicker skin - I know I am talked about in some unflattering ways (and I know who is doing it - not because of a tattle tale, but because I know people.)
BTW, in the light of full disclosure... it was suggested that I may have been the source of the hurtful statement. I did indeed say something the effect of surviving a meeting with a specific individual. This is something I do regularly. Every meeting is one survive. I may have felt especially wary of meeting with this individual as it is hard to keep her on track. This is merely my reality. If an individual is that sensitive - which I do not think she is - well, there is no hope. And for the record, it was actually a pleasant meeting.