"Submission Bin"

Just an idea (I dunno if it's already a feature): Collaborative weblogs like Slashdot work with the input of the users. People submit stories, then someone takes a look at it and puts the stuff online as he sees fit. There's no possibility in Antville to do that, right, i.e. "contributors" are always allowed to put something online? Would it be possible to have a contributor status that can only post "offline"?