I think it's true if the token so entered the market price dump, it's not a bounty hunter fault, it's purely because the team doesn't work seriously. They sometimes work lazy because their ico time is exhausted and already getting funds, so they do not hard work anymore and leave their tokens, there are even tokens left by the developers directly. It's difference if the developer is serious, so the token price is good in the market. So developer no need locked their token for bounty hunters.
I can't help but to noticed this as well. Whether the rewards were locked or not the outcome is pretty much the same. The team cannot maintain the stability of the price.
Well, at least they could hold the price before it goes down so investors could have an early party than hunters. That's from my experience so far.
Sadly for hunters only has the left-over from the party, or worst, the projects doesn't have any value anymore.