

I understand your point of view as well. I entered the game expecting a detective story with amnesia to sprinkle in background details about the world, but about when I found a guy so rich he bends light in a shipping container is when I decided I would just be along for the crazy ride. ;)
As for taking a photo. Kim has two photo plates for his camera. He uses one for the corpse. I am not aware of any place in the game prior to the Phasmid where you can take another photo, so he should have a plate available.
From what I remember (it has been a bit), he pulls out the camera right at the start of the Phasmid showing up, but you have to slow him down at that point and succeed in having your conversation with it. Only after that will there be a prompt to take a photo. I think. I am sure this is in the wiki though if you want to know for sure.
Ooooh the Pheromone right! I forgot about that!