I can understand the frustration of those having kills stolen from them.
Personally, I could care less if some moron wants to waste his ammo, fuel, and E chasing a dead bird, just to get another notch in his belt.
No matter what my score, I fly away with the satisfaction of knowing I got the kill.
Perfect example. My favorite kill of all time was not even a kill. I was flying a B-26 on a mission when we were jumped by an Me-262.
Surprisingly enough, I survived the first pass, and was able to line up a shot with my top turret. I put enough rounds into him to see 2 trails of smoke coming out of his engines. I expected to see him descend into the ground, but he somehow maintained control and disengaged. A gaggle of friendly fighters (who came out of nowhere) chased the wounded 262 out of sight.
Did I get the kill. Nope. Did I ping up an ace? Maybe. Did I save my own bellybutton against the hottest ride in AH? Damn right.
Best un-kill I ever got.