Once things are explained in the way @Sombs has done, I'm able to understand the point of view expressed, about why this type of use of secret information is not allowed. All that stuff about that information-based warfare is the one thing that will hurt people makes some sense. It's true that there are tools like the cloak disruptor that could prevent someone from doing that to you, but I don't want to get into a subjective and useless discussion. Points of view are like asses, we all have one, and sometimes you can understand why someone sees something a certain way, even if don't entirely agree.
What I still don't understand is why this is not properly written up in a place where everyone can see it, if the staff is so clear that this type of ploy to disclose others secrets shouldn't be allowed. In my RL I make a living working professionally with laws and I can assure you that the best way to ensure widespread compliance with a rule, or to prevent a behavior, is to make it public. I also understand the idea that the more general the rules are, the easier they are to enforce, but that also create more uncertainty for those who must comply with them.
I know that the warning to this players wasn't a sanction, and it wasn't about punishing them, but... Wouldn't it be easier that the person wearing a cloak to know what they can and cannot do with it, before doing something wrong and have to be warned by the staff? I honestly think the "don't be a dick" rule is too broad and subjective to encompass all behaviors considered by the staff to be unacceptable. I agree that a ruleset that is too complex or specific can make it difficult for the reader to understand. But if it's too simple or generic ends up being too dependent on constant corrections by staff members. Players need to have something to hold on to that gives them confidence that what they're doing is right, or not.
I also think that this would avoid many episodes of drama in the future, and discussions about the decisions made by staff members when sanctioning or warning.
