Well there are just some asshole hunters out there. Makes everyone look bad. Some people just kill shit to shoot something. That's why they make watermelons. take one to the range and go nuts.
Some folk are just carrying on a cultural ritual. Back home, its real common to go hunting after thanksgiving, stock up the freezer and eat on it for the rest of the season.
For me it's a bit of both. I love shooting things and for some reason killing animals (dont know why but I do). But I also love to feed my family and friends well fed so I get a lot out of it.