It's an adjective. Just a word. It would trumping game mechanics if he was trying to convince a Judge that it would be abusing a bug to ban the character. It's not abusing game mechanic to hate a realm because they tortured the little brother of their ruler.
It is an adjective with specific and significant meaning within the game mechanics. It would be better, and remove much potential for confusion and misunderstanding to use a term not significant in this way, such as calling your blood relations Prince of the Realm or something.
