The fear of dumping often makes the project team fear or avoid the payment of hunters until sometimes after the exchange listing. I wonder why the team make themselves restless on an easy thing like that when they can easily conduct their bounty with bitcoin or ethereum for payment. That will safe them of the fear that the bounty hunter will dump after the exchange listing.
it indicates that their project is not good, as long as I join the bounty, sometimes there are some bounties who are afraid of it because investors are too fussy they are afraid of the price being dumped by the bounty hunter even though if calculated they only give 1-2% of supply or token sold. I don't think there will be a deep drop if it's all thrown away, sometimes they won't throw it together, more towards to hold. if the project is good and earns a lot of money shouldn't worry about it, eventually, the price will recover. they can't possibly pay with ETH, because they also don't want to lose money from the sale of their tokens.