Board Thread:Questions and Answers/@comment-26138409-20150308004122/@comment-6697950-20150309061132

In SAO, people usually PK either for the fun of it (i.e. Laughing Coffin), or to vent anger if their prey are poor. If you want items, you'd just harass players to give you items to be left alive.

In ALO, you get a percentage of the victim's items if you kill them, but items in a party inventory can only be obtained if ALL party members are killed.