AH is a game... sure it is... but it would be a bad game if you'd constantly be aware of it.
I've often caught myself ducking my head when a plane zooms overhead in a close merge.
Same goes for bailing. You're still immersed in your virtual role as a pilot. Your plane is too damaged to garantee your survival so you take the last option - draw the white flag and bail, then along comes a guy and kills you. In that moment your either pissed off at the guy, or forced to think "right, this is only a game haha".
Well, I don't WANT to be reminded that this is a game! I want to exit RL where they call me Robert Sander and enter a virtual life as Effdub. The people you meet there are also virtual, sure, but still you can express your respect (or disrespect) for other virtual biengs through your actions.
I feel that killing someone who's trying to ditch, after you've fought him 1v1 in an even fight, is disrespectful, sames goes for chute killing.
Well, you may not think so, or care less, but the problem is that the other guy may actually care about it. But he can't do anything about it because he's defenceless.
So you are forcing your "hey it's only a game, you don't like chute-killing but I do" dweeberie on someone who can't fight back - thank you so very much.
Yeah sure, AH is just a game....
Why do we chute-kill? Because we can
Why do we fly off the map? Because we can
Why do we vulch? Because we can
Why do we gang-bang? Because I just found 5 others who also can

You Chute-killers are so cool, man, you've figured out AH is only a game - wow! So you don't mind anything that's possible in AH right? sure you don't! heck it's only a game!
So if any of you guys EVER whine about ANY game-the-game aspect I'll first laugh at you whiners and then kill YOUR chute... fair enough? Sure it is folks... remember, this is ONLY a game
Effdub