Perhaps the pictures were taken in celebration of killing the cougar that had been killing their livestock. It is a possibility...
Or maybe I am getting the wrong impression... you think you are a bad bellybutton when you kill a cute little bunny?
I personally do not partake in trophy hunting, although I did mount a head of the last elk I killed. Figured it was going to be wasted otherwise.
I enjoy hunting elk and deer, mostly (but not exclusively) with a bow. I can enjoy hunting with a camera out of season. 99% of the enjoyment comes from getting into a position to shoot.
After the kill, the fun is usually gone, and the work begins.
In the USA, 90% of the money that goes to animal conservation comes from hunters. The tag system keeps the number of kills controlled to what state biologists deem necessary to control animal population.
Oh, and the use of dogs for bear and cougar is outlawed in my state.