OP should create a flag for this project to warn people, anyway if you're a wise investor you're not going to fall into something like this.
Sadly, that will only slowed the BM a little. As OP said, the bounty was managed by a notorious BM. Leclerc2019 was part of, if not he himself, the already flagged and tagged Formula Bounty. He'll re-emerge with another alt-account.
At least if we have investors or bounty hunters who will do research they will find that this platform is considered a Ponzi scheme which obviously it is, we can only warn people about projects promoted here and hope that those who will invest will see the status of the platform.
90% of the bounty campaigns are scams a far cry from bounty campaigns back in 2017, it is a big gamble both for investors and bounty hunters to get involved in these kinds of projects.