My version is not as good, but may amuse you as thanks for sharing your story.
I once started a joke secret society in an MMO, only to be forgotten within a day, and then (gleefully) be reinducted a couple days later by a total stranger as a new member.
The induction nonsense had changed enough within that couple of days that I think I made a pretty convincing new recruit.
Though I think I caused some confusion when I changed outfits - I forgot that I had not yet "been told" the secret dress code. Oops. I think everyone then realized something was up, but chalked it up to secret society intrigues.