Devs in the game/Easter eggs
The hen is not the egg.
The only monument we care about is making this game of ours as good and exciting as possible. Inserting into it obscure private jokes or things that not everyone has the same chance of understanding or uncovering is against that mission.
Having said that, who does not love good easter eggs? There may, in time, well exist obscure references to historical figures, works of fiction, legends, films, and even other games that we want to give a hat tip to and honour by a direct or indirect mention.