Ask yourself this: Does one or two or maybe even three Bitcoin could crash a project? Cause that's the bounty fund for most of the bounty programs. Bounty hunters don't get much from bounty program so if you think they are able to crash or making a price go low then you're out of your mind. Maybe they have some impact for a very small cap coin with maybe a few bitcoin for 24h trading volume but other than that, no.
Putting blame on bounty hunters does not worth it. There are projects that pay bounty hunters in stablecoin or already established and better still, listed coin to avoid blaming anyone on whatever happens to their projects. At least, we all are here in this space and so many time, we have witnessed bounty projects that paid bounty hunters and airdropers huge amount of fund and yet, they keep rising in rpice.