I am not a ginny hater, I mean, I have read some seriously good fanfics where ginny is one of the, if not the only, main character, but, what they all have in common is that they basically tear the whole character of Ginny down and rebuild it, from the ground up. Now there is for me not really a reason to kill her off. But on the other hand, there is no reason to not kill her off. And since you seem to have a bunny in your head that has you kill her off, please go with it.