I like to take pictures of scenery and places. Maybe my pets or some thing or person that doesn't care, anyways. Sometimes people want me to take their picture...
Or neat designs and stuff I want to remember... once when I drew all over my hand, I liked the result, so I took pictures of it from various angles.
I don't think anybody in their right mind actually enjoys that.
Maybe most people just don't know, or understand... or choose not to acknowledge it. But I don't see why a person would enjoy that, or causing anybody to go through something, just for the sake of the simple fact that they do not like it, and then enjoy it. It's just not anything to be happy about.