I've seen lot's of people who complain to bounty hunters who dump their tokens after they get them. Why hate them? They have all the rights to sell whenever they want and bounty allocations are only 1%-5% of the total supply of the coin. I don't think it will do much to lower the price of the coin. I mean it's even good for the ICO investors as they will have a chance to buy more tokens with lesser price than the ICO.
Holding the tokens also doesn't mean it will make you rich. Some tokens get abandon by the developers so it would be better to sell at a good price than be left hanging in the end.
The investors thinks that the bounty hunter is one of the reason why the value of it was continue on dropping down because many hunters are continue to sell their token if they see that it has a value so the output the price will continue to drop down, and then some manager are locking the a month the token of bounty hunter to have a good value in return for the investors.