You mean like SG4, which is just a flatland with some features and no real terraforming (not saying terraformings necisscary, because I'm making a map with no terraforming, but I least have an excuse, since not much terraforming happens in a treetop village), or like Breeze Island, which is an about 25 block wide mountian island with about 1000 blocks of water and two pirate ships with a chest number that is probably under 100.
While I understand the whole "Save server memory" idea, as too many maps could cause lag. However, the fact is under your logic, the only maps that should get played are the ones that get picked. So your saying we should get rid of maps like Hungry Hills, SG1-3, Khar, Skylands, Terwan 1-2, Fortress Pyke, Survival Kingdom, Solor Frost, and other maps I may have missed because there not played enough. The fact is, people can't appriciate a map when it is not picked.
That is why Chad and the rest of the MCSG staff need to restructure voting so that minor maps can be picked. Because as soon as we don't only have 3-4 maps to play, the sooner we can find out which community maps can be deleted.