What purpose does your setscale command have otherwise?
Because any purpose I can think of has a subsequently lower chance of use than that of an admin screwing with you.
believe it or not a lot of people use eval to set other people's scale, and now for people who don't know eval they can with the simple command.
and if admins are going to abuse it, then it's just abuse, drama them if you care enough, and I forgot to make it an RTB pref yesterday, will do later today.