Vilmu

That must be DayZ only definition for it. For as long as I remember (from CS betas till this day) ghosting has been abuse of spectate feature (either as spectator or after you're dead) in games to report locations of enemy to your team / friends.

I'm 65 hours in and have killed 3 guys plus 5 freshspawns who asked me to kill them. I guess they weren't happy with their spawn location. My first 2 were in self defense when 2 guys ambushed me and shot at me, then changed to fists and chased me. At which point i pulled out my M4, turned around and killed them (this was about 10 hours in). Third kill was accidental as i was trying to help someone and shoot a zombie, but hit him instead :( (about 50 hours in). If neither of those count, then i'm still at 0 KoS kills.