That trap was built by Hoggin' Hank. He told me to never shoot a hog in the trap or I wouldn't be able to trap another one.
We trap them because we can.
They are primarily nocturnal right now and difficult to hunt - but not impossible. The trap makes it easy to catch a bunch.
Depending upon size, people will eat them or sell them to a buying station. The stations pay on a per pound basis. Several years ago a 100 pounder was the top dollar, but now hunting ranches are buying them for hunters. They want the biggest ones they can get and a Russian boar is quite the prize since they are rare. If a hog is trapped for release, it must be neutered (including females) and vaccinated.
I didn't have time to mess with this big guy, so I called my neighbor. He picked him up and thought about eating him, but after some discussion, he started thinking about the money from a station. Personally, I would like to see him go to a ranch. He would be a trophy for anyone to shoot - even if he was neutered.