There are lots of member busy on catching those who abused the principles at Scam Accusations thread.
Most of those cheaters have been caught and reported on Reputation thread, not scam accusation. Scam accusation is needed when the project turned to scam and ran away with their ICO/IEO/Defi money.
I don't want to blame the bounty manager because a project will be a success or a failure there is nothing for the bounty manager to do.
Managers MUST do some little research first before he accepting the project they want managed. At least, escrow the bounty funds to them or trusted escrower.
In fact, professional manager always do more research on a project. so many times the manager idea is wrong, so there is nothing wrong with the manager. If the ICO/IEO of a project goes to fails then there is no mistake of bounty manager. Also at this time almost all the projects are cheating and scamming where many managers are not willing to manage the bounty at this time.