I just find everyone shoots on sight nowerdays like any other pvp game. Its pretty much removed any social aspect to the game and made it a FFA pvp arena with zombies. Without any consequences to being a "serial killer" there is really no reason not try and kill anyone you see for their gear given the difficulty of aquireing gear especially early on. Long term I do not think this is a good thing as new players suffer (Cherno & Electro are like a bad day in Mogadishu and running North without a map is hard if your new), if you play solo (w/o pre-arranged groups) the game becomes a somewhat lonely experience and you remove one of the more interesting choices presented to a player that made Day Z stand out from the shooter crowd which was moral choice. Additionally there is no real reward for pvping except for more loot which eventually becomes pointless long term.