I assume the newbie account with the Cooper member who is the bounty manager is operated by someone who is used to doing this. This is just an assumption, there is no incriminating evidence yet. but from what the bounty manager does and the attitude of the bounty manager. clearly shows unprofessionalism.
There's nothing wrong with that, the forum allows you to create alt account as much as you want.
but it is difficult to provide more accurate proof of this assumption.
It's very clear that activity still occurs frequently on this account, even though it's not used for interaction. It's hard to know what is being done and for what; let time tell.
If the person who manage the bounty is known as a scammer, then even you've collect the proof and wait the time to tell the truth, it's not important anymore.
The key is avoid to join bounty, if you want you can consider to only join the bounty managed by high trusted user or the funds is already escrowed.