

I think this is partly about giving yourself an out for liking childish things as a near- or young-adult. Kids shows commonly do include some Parental Bonus but extending that idea specifically to dark undercurrent plots that you have to read between the lines of the text seems like a way to feel “in the know” about something adult in the work while still consuming something you feel society expects you to have grown out of.
Then with a bit more maturing than that, you can hopefully just embrace childish joys earnestly, because joys are precious.
It’s the parts of a program’s concepts, rules and behaviours that are specific to the program’s task. For instance
When developing software you deal both with these kinds of specifics and generically reusable concepts that are more purely computational science, so a term to distinguish them is handy.