I think that the statement that bounty hunters are killing the project is not true. These guys publish in various news channels and features of the project, thanks to which more and more people will learn about it.

Since the topic of cryptocurrency is quite specific, every second man in it is a potential investor, so this is work directly with the target audience. It makes sense that every work should be paid, which is why the bounty hunters receive tokens.
Another thing is how the project's economy is built. Usually, the bounty pool is 1-2% of the number of tokens, which cannot significantly affect the cryptocurrency price rate. If the project is not a scam, then the team will provide for a possible drain of tokens by buying out its share on the exchange and restoring the rate.

I definitely believe that without the bounty there would not have been such a surge of interest in blockchain startups.