Ok, fair enough. In common perception of NK, they do seem bizarre, not like the Soviets during the Cold War.
I think it's unwise to dismiss them as lunatics incapable of deceit. If I were a NK agent, I'd work towards this notion, "NK are incapable of lying if it would diss their leader, that's how we get them!". In fact, I would spread this notion in Reddit, like the OP mentioned.
By the way, this still leaves the easy way out of "why are you asking about Kim Jong Un in a job interview, is it because I'm Korean? I'd like to speak to your HR department please".