I think Elly made a typo. Sis typed "world spoon" instead of "word spoon", so Remmy made a random graphic and stuck with it throughout the whole season.
^ I was trying to understand the significance of that reading through last season. What does "the world spoon" mean? Is it a joke?
In season 3, Ellie made a random typo in the OP that said "post the world spoon" so I literally posted the world spoon. Then in S4 I just kept the same thing but changed the color.