[Little Pig]

Considering how expensive it is to launch, regardless of what is carried as payload, the NorKs would be even stupider than usual to not at least use a dummy weight. They don’t have enough rockets to throw away one just to make it look like they’ve got long range rockets. They need every datum of telemetry with a legitimate payload weight that they can get, if they’re going to get their money’s worth out of the few test launches they can manage.

[SpinnerWebb]

They don’t have enough rockets to throw away one just to make it look like they’ve got long range rockets.

That's exactly what they will do. They have whole empty cities just to make it look like they have cities.

They have fully stocked department stores, for official visitors. You just can't purchase anything.

They have students whose job it is to sit at unplugged computers in the library and pretend they are working.

The entire country is one gigantic façade.