With a large allocation, the bounty can threaten the initial listing because many people can dump when the initial listing and the price can go far down. so actually bounty is also a threat
not all of the causes of the dump are bounty hunters, even though the bounty hunter is one of the triggers, but sometimes it also starts with investors, or dev that doesn't make the price of the coin rise. well, I think so many factors from the dump price of a coin.