I'd leave it on, of course its rare that I make it home with kills so its still a thrill for me to get my name in lights.
Would I fly different, nope. I'm balls out all the time. Fly to fight, fight to kill. thats my motto.
I think a lot could be done WITH the scoring. They could use scoring to adjust how people play in the arenas very easily. Most say they done care about the score, but the majority of those really do care.
Bombers, if you bail/ditch you get one tenth of your points, you get killed you get seven tenths, you land you get full points. End result is more buffs would fight and try to return to base.
Fighters, same points whether you bail, die, or land, but you get a multiplier for number of kills landed WITH OUT a reload. You take away the penalty for ditching and dieing so they might fight more, add to that the extra points for getting more kills on a single run forces more fighting, and less people to be "timid" to get those extra kills because they have a time limit on the ride.
GVs, one tenth the points for kills with in one mile of a spawn point (towns should be outside the 1 mile radius at fields) Forces less spawn camping and more ground tactics.
Can these things be done, I don't know, but they are just examples to use "points" to reward good game play, and inhibit bad game play.