Cant say I would do that myself, but I guess if your wanting to go out in styleNo it was just a site I no longer wanted to be a part of so I chose to go out with style. Nothing implied on here.
Well I think general privacy is something to balance but you mention the work side of things and I would agree that this is an area that highlights facebook on whether it helps or hinders you online.I deleted my facebook once over concerns of the real world but I don't worry anymore. Those were job related. Privacy has never been a concern of mine.
I suppose asking about privacy concerns is a bit open to interpretation, probably the best question is where Facbook isn't being very "social" and is beyond simply networking and helping.