People in the top 100 probably don't care much for the rank. They are more focused on playing this game nonstop to get back onto the top of the leaderboards. As for the idea, sure it might be nice, but why bother. Players will see this rank and just target the person who has it. And the rank brings unneeded attention to the user, unless of course, they want the attention and just sit in the hub trying to make friends... And if you want to be recognized for this, your name is already on the legacy leaderboards, that should be plenty of recognition of the hours upon hours you spent playing a computer game.