In my own opinion i will say it's just for one reason and it's because most bounty hunters dumps their token at any give price, they don't consider or care about the ICO's price.
Yes, stop you already carry nonsense. You read at least one condition bounty company. The total pool of bounty companies have only 2 or a maximum of 3% of the total number of tokens. 2 or 3% of tokens on the market do not have a big impact on the pricing of the total number of coins. Therefore, it is not necessary to blame the Bounty Hunters, among whom there are also users who leave coins for long-term storage.