...yet highly pretentious article (read below...I have no idea how that sentence cleared the editors), it appears the IMF has decided to play a game that is analogous to the U.K.'s antiquated Knighting system e.g. granting a title that is meaningless but somehow bestows promotional value to the recipient.
There are no true "reserve currencies" without a powerful military. It has always been thus. A "new era in world money"?