I've been pvp since day one ps3. And i played a lot demons as well, think i offer people to backstab me, you are wrong. most if not all pvp I fought people are attempting to backstab. I counter them or punish them with backstab. If I cheat why would I be bothered with backstab? I won't die period, cause I cheating. No, I don't cheat unless I'm doing low level invasion justice. And it's pc only.Look, if people backstab you all the time, it's because you are weak to backstabs.
Unplug the cheat engine and you'll eventually learn to protect your back. No matter the build and setup, if you keep offering backstab opportunities people will seize them.
edit: edited to be less caustic.
One word to sum up dark souls pvp? Backstab