It got removed because of two reasons.
1 Using the Muppet smilies we have here to represent a particular when speaking is fine and well in an RPG setting, but not so in a fic. It is unnecessary to represent character dialogue as the respective smilies personified by said characters since that kind of thing doesn't read well as a fic.
2 The second reason it got deleted is because your fic wasn't really a fanfic as much as it was a role-playing game (RPG) thinly veiled as a fanfic. As such, that circumvents the protocol for a new game's creation. If you have an idea for a game, that's what the Game Suggestions thread is for, which will then lead to a discussion as to whether the game you propose should/could be started by a member of the staff.
Thanks for understanding, and have a good day.