Really saying: So I know who is an operator so i dont mess with them or takeover a channel they are in
Even though I agree with everyone who has said that an $isoper identifier would be useless and/or unreliable, I must say that I am tired of replies like this one, in which some people find the "possible" malicious use of a new feature and try to judge the person who proposed it.
I mean, come on, sometimes somebody proposes a new feature that might be useful (even though the vast majority of times it isn't), and instead of explaining why it isn't useful, or why even though it is, it shouldn't be added, some of you start attacking by judging the person, when you don't really know if they intend to use that feature in a malicious way.