What does it give you personally? Judging by your logic, if all bounty managers start depositing the bounty pool and distributing it, and the project will not be listed at the end, and all the time it will not be a working product at the end. In this case, you will turn your wallet into a wallet for storing dead coins/tokens. I myself have about 100 dead coins with bounty in the period 2017-2018.
You need to strive to find projects that will definitely turn out to be working and go to the stock exchanges, so that you can sell your reward and get at least some profit.
Maybe just join btc-paying campaigns. There are a lot now in Services section, paying btc for their participants. And that I can assure that they are paying their participants every week. Most bounties in alts section really have no assurance if they will ever be valuable in the market, even if you received your share.