Good work OP, this type of bounty managers who manipulate the rewards should be permanently banned coz they bring bad name to the project also bounty hunters doesn't get fair rewards because of them. I too had reported bounty campaign managed by @krypital In which I observed huge manipulation in bounty rewards. I have reported some of the bounty cheaters with the alt account and they got tagged thanks to the DT members for their prompt action.
Also I found some participants who doesn't even exist on bitcointalk forum in spreadsheet who got rewards. Even I had sent PM to @krypital regarding the same matter he didn't even replied, I have strong feeling he is also manipulating the bounty rewards. I was shocked to see his other ongoing campaign spreadsheet he just hide the bitcointalk forum username of participants to protect the bounty abusers and cheater.
I feel moderators should make compulsory rule to mention bitcointalk username of participants in spreadsheet for bounty managers this will help to track the cheaters with alt account.You can check my reported link here
https://bitcointalk.org/index.php?topic=3438054.msg35846788#msg35846788