Traditionally in China, moon cakes are given to coworkers and families as traditional gifts and shared among several people with tea. Despite the 1200 calories per cake, I'd have a hard time sharing. Maybe it's a good thing I'm not Chinese.
This taps right into that toddler part of the brain where you want to pick up a whole pie and smash your face into it. Taking a big ol' spoon and jamming it into a jar of cake and frosting and having no regard for the mess you're inevitably going to make sounds so childishly satisfying. Where's my big spoon?