I'm sure OP is a fan of your campaign. he must be in every one of your campaigns. he forgot several successful bounty campaign projects and got good payouts. but he felt panicked when some of the bounty campaigns he participated in didn't pay him.
he didn't know the concept of bounty campaigns. Unless the bounty manager provides information about the funds in escrow, and the funds are not distributed to bounty participants, we cannot call it a scam.

I'm sure he's a big fan of yours. he will not contact you with his real account because he must be afraid that he won't get another chance to join your campaign in the future.