I have experienced many things while hunting for bounty prizes, when I joined one of the bounty projects I supported it for almost two months and when the distribution of the project was a scam I was very disappointed.
And that is also experienced by many other participants here in several other projects, so there is no need to be disappointed even though you have given them valuable time, where everything has ended in vain, and this will clearly be a good lesson for you and other people, that joining any project always has the risk of loss, namely the loss of time if the project becomes a scam, but it will be very profitable if the project becomes successful, now because of things like this everyone is required to always analyze all projects before we choose to join.