The man has a point, and as an avid hunter myself, I shall give him an answer.
1. Deer meat tastes delicious. So much so, that I don't like beef, but love venison instead. I freakin' love deer meat. It is lean, tasty, and healthier than ground beef.
2. A lot of us do take care of the nuisance animals. I take great delight in removing coyotes that kill fawns, turkeys, and the like. I also eradicate possums and raccoons that eat turkey eggs.
3. Deer can become nuisance animals to a point. In some sections of Kentucky, the Fish and Game department says you have a bag limit of two deer. In other counties, it is up to four deer. I lived in a four deer bag limit county, and I say we should have upped the bag limits, because in a span of five years, I was either the driver, or passenger, in six separate deer collisions. The little bastards were everywhere.
4. I'd like to try other nuisance animals hunting/trapping.

Hogs need to be killed and eaten you know.