Here is a thought:
My understanding is that the RealID information for your character can be seen in game by an add-on coded to access it. Anybody, supposedly, can access this data. If this is true, you could make an add-on that collects and associates character names with RealID information in a database. It could alert you when you a new character name is associated with a RealID and even share that data with others that use said add-on.
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