Most people might find it odd that I don't dislike the concept of an area for having hissy fits in. It is a very good thing to have a place people can go rant and complain. There's gotta be clear guidelines though.
One, Everyone has to agree, explicitly, to go Vegas style. What goes there, stays there. It doesn't get used outside the space, doesn't get dredged up months, years later, doesn't get talked about outside that room. It has to be safe space, otherwise it's not really a good place to vent.
Two, it has to be CLEARLY stated and understood, not assumed, that what people say there is *venting*, said at the extreme of frustration, and may not be what people overall think or feel about a person or situation.
Three, it CAN NOT be used as a front and an excuse. You can't use it to say what you really think about something, be vicious and nasty about it, and then say "but I was venting in the venting area!". It's not a place to just be a poison pen, Ann Coulter style, and then hide behind it being a place to let loose. Especially if rule one or two is violated.
So, while a place to vent is vital for most human beings, it needs to be a place that you can do so in trust and understanding. And there needs to be penalties for those who violate that trust, that space.