A bounty Hunter is not an investor. He becomes an investor if he buys the token/coin. Most hunters will dump their token when they get paid and move over to another project. A bounty Hunter is a promoter, that is shilling a project to his own circle of influence.
There is difference between a bounty hunter and an investor. An investor earns money by investing his own money. A bounty hunter earns money by working for free. If a bounty hunter gets a token, he can sell it at any time because that token. T he did not buy with his own money, he can sell it at a profit for him. And an investor. Before selling any token he will sell it after much thought. Because he has invested his own money in the tokens.