I've been kill shootered twice this week alone. Both times was when I was firing on an enemy plane and some goofball flew into my tracer stream. (I have tracers ON btw) Both times I let go of the triggers, but bullets that were already in the air killed me.
I tryed flying with tracers off, but got kill shootered so many times that I turned them back on.
*edit* oops, forgot to answer a couple things. 1) I dislike kill shooter because to often if penalizes the wrong person. 2) I generally fly alot of hours, especially since I sold my Everquest account for cash.