This is already a red flag, but i am sure bounty hunters do not care, the bounty manager said funds were escrowed but did not share any proof of that except their words, which the participants believed, or just hoped it was true. There is really nothing much that can be done here, the bounty manager is not a "reputable" member and prolly does not care about their account even if he receives negative feedbacks. It is what is it though and there is nothing new here; this is what we have come to know bounty campaigns as.