A method that should be minimally visible while eliminating rapid fire spam posting: Allow each account to have one item at a time in queue that has fewer than

A method that should be minimally visible while eliminating rapid fire spam posting: Allow each account to have one item at a time in queue that has fewer than x points with x being a global threshold (perhaps start at two and increase if needed). This allows anyone to post but prevents any one account from dominating the queue without the group's consent. It's still possible to game by making multiple accounts but that should be fairly easy to see in the logs if it becomes a problem.