I don't think making a Administration Exploit is bad enough for a account ban. Doing it twice may be a ban.
You act like this happens every day XD
What's the chances of that ID joining your city rp, and exploiting the admin command? Even so, it's not like it gives him all out access to everything, it's just admin. Also, JJstorm has to much of a status to lose if he goes around doing that.