It's just a Custom Title. I don't see how it's hurting anything.
Though I don't know the circumstances of Aarom's Private Messaging Fiasco (APMF), I find it hard to believe that someone would think sending enough Private Messages to be deemed "spamming" as anything but a mistake. It's called common sense, and if people aren't going to use it then they're forfeiting their rights to complain about the repercussions. Though, in this case, the repercussions are something hardly worth complaining about.
Besides, it seems as though it's serving its purpose. If people know they're going to be exposed in public, through some means they can't remove (In this case a custom title), then they're certainly going to think twice before acting.
Whether or not he's had the title long enough isn't my decision, his, or yours. Though I'm sure he's appreciative of your concern for him, it's not our job, as members, to tell the Mods/Admins how they should run the board or any of their policies. They'll remove it when they deem fit, and that response should be good enough for anyone.