The leadership isn't a problem. The ruler even requested that this person cease this activity, but to no avail. I don't want to make a case out of it- this person's heart is in the right place, but they do not seem to understand how the separation is supposed to work. I've quoted the rules, explained the reasoning behind them, yet they persist.
Maybe there's something we can do that's not exactly a legal indictment, but rather get someone with some authority to 'counsel' this person on proper IC/OOC etiquette. I don't know- I just think it would be a shame to lose a player over this issue.
It is a popular misconception that any report to the Titans (or Magistrates) constitutes a "legal indictment."
If you want an official statement that X, Y, or Z is considered non-kosher—either privately to you, privately to another party, or publicly to a realm—that is
the approved way to do it.
If, on the other hand, what you want is not an official Word From On High (however gently phrased), but rather for someone official to sit down with this person one-on-one (virtually speaking) and explain to them how IC and OOC separation in BattleMaster is supposed to work...honestly, that sort of thing is really what the Wiki is (supposed to be) for. Failing that, I suppose you could try to encourage them to come on the forum or on IRC.
With no devs or Magistrates in the realm you're talking about (and I presume there aren't, or it wouldn't have gotten this far), I don't really think there's a way within the game itself that what you're suggesting can reasonably be done.