The price of any coin can fall dramatically if holders start to sell it, so it always has been and will be. In airdrops and bounty campaigns, a small percentage of the total number of coins is distributed, so it is not always fair to blame bounty hunters for the price drop.
If there is a demand for tokens, it will be a guarantee of a good price and its growth. Successful projects that are popular do not fall in price if bounty hunters sell their tokens and most likely no one will sell them immediately.