The practice of bounty managers hiding their spreadsheet from participants is becoming rampant. They hide their spreadsheet and pay bounty hunters penny, which I think is a lack of integrity and it is totally uncalled for.
I have participated in like 3 bounties in the past where managers refuse to make the spreadsheet available to hunters. They all paid ridiculous amount. I got tokens worth $18 for 3 contents that I created. I believe this is exploitation and it have to stop.
It is fine to close the Spreadsheet of a campaign as long as before the distribution, they have to open it in public to have a transparency. Those managers who did that should be banned immediately and you should make a scam accusation so the manager will be penalize and the bounty hunters will be informed and avoid their scam campaigns.