In mw2 I was some-what of a stat whore, had somewhere around 3.5 k/d I think
Since then though I have not given a single care about k/d, I can't even recall checking it in the last few titles.
The only things I ever cared for when playing was one or combo of 3 things:
1. Winning the game at any cost
2. Getting clips
3. Messing around having fun
Combine that with playing mostly search, sniping alot for clips, plus roomate playing on my account, I have no given a single fuck about k/d since.
I'm not even sure what my k/d is in BO2, no would I care.
Just my style, not saying there is anything wrong with the people who do care, just that I do not.