Badspot has said a hundred times that builds are meant to be shared and saved and therefore anyone who makes mods that prevent saving or ban for it will have their keys deactivated. If you don't want people saving your builds, don't host them publicly.
People need to stop being to paranoid about people "build stealing". alot of kids save cool builds they see on servers so they can share it with their friends. its a part of how blockland works. i'll admit, i used to be paranoid about people saving my builds too but i eventually realized how harmless it was.