Make the reward high enough and it can work.
That's probably true but to what end? I believe they should wait until at least the MVP is ready before they shell out funds to bounty hunters.
Bounty rewards are always tempting and you dont have to give away a lot of tokens. Lets face it, we all love free stuff and even thou its minimum, you cant resist it.
Personally, I dont waste my time for 5 $ by 30 min work.
Often you have to reveal personal data to a possible scam who will sell these later.
For 5 $ I dont make this effort and risk.