I took this idea when someone posting some picture in FB for changing ID with gems and i think that's a nice idea, how ever the gems price will raise when change ID to second time just like we buy a Builder hut's, some people want to change they ID when they growing to a big TH that's include me. so why not SC think about that and i think many users here agree with this.
the example
1. Changing name first time: 500 gems
2. the second times: 1000 gems
3. the third times: 2000 gems