The mod rank selection (sometimes referred to as underclocking) is a good (frankly great) concept but under the hood it is a bit of a nightmare with the way Mod info is stored per account. It is a very, very hard issue to solve, it technically has a solution in game now with copies of mods, and right now I don't see it entering the dev's pile of priorities considering how much full their current plate is.  Maybe one day.   Forma applications being a permanent consumable will be staying this wa