Post-battle management was just as important as the battle itself!
"Well, sure… I really can't get used to the way you deal with the remains."
Normally, monster hunters would harvest the parts they could sell or use and put the leftovers in one large pile before leaving. If it was in a populated area, a resident might be kind enough to transport it to the garbage dump, but people hardly went as far as to bury their prey.
Even if they were enemies, other Martial Artists would usually be buried to honor their death. However, monsters were no more than pests that didn't deserve honor or respect.
"It's not always necessary, but at the pace that we are moving out, we don't want to end up causing a foreign disease to spread throughout the Murim."
On Earth, death in mass usually didn't come with any health hazards, but that was only thanks to the advancement of medicine. The several vaccines and eradication of infectious diseases made things safer.