Any experienced player on PS3 knows that system is broken and aimbots/wallhacks exist. And to say someone who has modified their prestige and have a freakishly high k/d to say they are legitimate players is something a modder would say. So if some guy hip fires you through a wall across the map and then spawn kills you through a wall right after you say that's skill right? But as a PS4 player, I have not found this to be very prevalent, maybe ran into it once or twice. But wouldn't surprise me that PS3 is full of them since MW2 has the aimbotters, MW3 has the invisible guys etc.
Certain things I must point out. As someone who runs a headset, uses amplify, dead silence and stalker, pre-firing around a corner is a necessary tactic. If I hear someone nearby, I will ADS and start crouch walking and pre-firing when I turn a corner, and there are times I get called a cheater for that, but its merely taking advantage of the in game mechanics and being a smart player. Agreed that this is the participation ribbon generation where people expect to be good at something without putting in the effort and when they get beat, turn beet red and rage. For me, when I get flustered, STEP AWAY FROM THE GAME (no one is going to die if you stop playing for a bit, not like you're doing heart surgery), I do something else for a bit, then go back on, change up my tactics and have fun again. No sense in raging and when people get flustered, they don't think and will do the same thing over and over again... pretty much insanity at that point.