The first thing that must be stated is that Mortars are incredibly powerful weapons. They can easily be used to take out massive chunks of Rasman from 4km away, which not only puts Civilian lives at risk (As usually they are used without a Spotter in their current state), but causes massive amounts of lag due to the destroyed buildings. That being said, I agree that they should be taken off the War list, though much stricter control, as suggested by Zerix, must come into place. I agree with all of the suggestions, though the most important one is suggestion 2, Mortars most definitely need Admin approval before they are put into use.
As this is a suggestion as well as a rant, I shall move it to the appropriate area on the forum