Let's say you made a map. And you think it's perfect, but then you realize you forgot something important to the design.or you just got the deluxe editor and you want to make your map bigger.
If you allow unpublishing then people can fix or add what they want. But i now what you're thinking what if people are playing on the map? What happens to the votes? and what if it's featured or top map?
well there could be a reminder that if there are people playing on your map it'll notify you and will prevent you from unpublishing. The votes will be removed (or could stay) and if it's top, it'll stay for sometime unless it hasnt been republished in a certain amount of time.