There's a lot more factors that go into determining one's skill other than just KD (playlists participated in, combat rating, kills overall, etc.), but if anyone tries to use KD as the main focus (sometimes any) in an argument, that person's opinion is already worth nothing. The logic behind using KD in PvE discussions is simply idiotic, yet there's also times where they should be taken into some form of consideration; ie. Weapon balancing. Oh, and this is coming from a "good" KD.