I am sure this is reported. But on XBOX, people can log-off too easily and not take damage. I've had quite a few instances where I take a shot at a player, the minute they know they're no longer in an advantaged position they sign off. Including times where I have a shot on them, first shot does damage, before I can get a second shot they sign off and their character just hangs there. I can't hit them and they just get away. Not fun, ruins the game.
I recommend bringing in the PC side where character is there for a bit and can be damaged. Makes running away via log-out a lot harder :)