The problem is the reward for winning a players' entire stack depends on decisions made by the player that lost his chips based on factors that are completely beyond the winning players' strategic consideration.
Let's say A wins C's stack, but C decides to rebuy, say because C is riding with E and E has a bunch of chips to invoke
@Poker Zombie ' s example, so no bounty reward for A correct?
Next hand B wins D's stack and D decides to be done. So B does get a bounty reward, correct?
Why does B deserve to be rewarded more than A does solely due to decisions that C and D (and with some influence E) made that have nothing to do with strategic decisions that A or B could have made?