The answer is more 'why not?' after considering the pros and cons of shooting other players on sight. Cons ???? Pros I get their stuff. Maybe they don't have anything I need, but if that's the case I still haven't lost anything except a few bullets. I am not dead because they are. Players make more entertaining opponents than zombies, but there is a thrill in catching someone well geared totally off-guard----you get their shit and they don't have a chance to return fire. Some people take this game way too seriously (and are also ignorant of spawn locations and poor fighters/zombie managers, so it takes them longer to recover from a death) and their outraged reactions are entertaining. Let me see if I can't show you my perspective a bit by telling you how I play through this game. I start out by picking a fairly low pop server (fewer than 10) players. I kill myself until I spawn in either Balota, Electro, or Cherno. Once there, I run through the entire city and loot every major spawn. (Military/Store/Big Res Spawns) If I find a player before I have a weapon I run, if I find one after, I kill the player in the hopes that his gear can advance me along a bit so that I don't have to look elsewhere for say...a box of matches or a decent pack. After I loot a whole city in this fashion I usually end up with most of the tools I could use (toolbox/hunting knife/axe/BoM/map), at least one decent primary weapon and a secondary weapon. Once I've got that shit I set a nav point to Starry and run there. Once again, any players I encounter I kill in the hopes that they will have some of the things I'm looking for. Later on, finding things like Rangefinders and NVGs is time consuming as all hell unless you get them from another player, which I do 95% of the time. I cautiously enter Starry (I'll usually lie in overwatch for a bit to make sure no one is there waiting) and go to the tents and then the supermarket. I loot those things, then I set a nav to the NWAF and go loot it. Several times along the way, if server pop goes up too much I'll find another low pop server to go on (looting the NWAF on a high pop server is just not worth the trouble) and if there are spawning issues on a server I join...I join another and loot the same building again. Anyway, I want to end up with two rare or higher quality weapons (sniper rifle preferred for one of those), an ALICE pack or better, every tool I need to fix vehicles, feed myself, and navigate, and either a PDW or silenced M9 as a secondary weapon. Once I have all of that, I meet up with my other friends who have been doing the same shit, we go onto a high pop server and try to find/steal vehicles and accumulate gear in a secluded camp (along with the vehicles) with the eventual goal of having a helicopter for the group, and several ground vehicles and several tents stocked with weapons/equip/food/repair parts/etc. and on a personal level having your favorite weapon combo (for me happens to be DMR/Mk 48/M9-silenced), NVGs, Rangefinder, GPS, Gillie Suit, and a Coyote Pack. At that point we fly around playing vengeful gods of DayZ destroying everything we can because it's what we find entertaining.