I would say the biggest issue with KOS is there is literally NO repercussions. Unlike other multiplayer games, where there are kill alerts and nameplates, players cant see when someone is griefing and find them. And this is due to the realism of the game, however, I think the DEV team needs to decide where they draw the line with realism. On one hand no nameplates or kill announcements makes the player feel secluded and alone and adds to the suspense. But at the same time I feel its going to detour alot of casual gamers. Also another thing to take into account is how weak and few zombies are. At the moment there is no real PvE in the game so of coarse people turn to PvP. I hope to see stuff like infected dogs and wildlife appear. Things that WILL require more then a bonk on the head from an axe to kill. I personally try not to KOS. Its just no fun for me. I enjoy the human interaction. That said, I have gotten into a TON of firefights due to other players trying to kill myself and my friends. And it has already gotten annoying. We even try to talk to them and they just dont even respond. Its like fighting robots. In the end almost everyone always dies besides one person and it just ends up being a loss for everyone.