At first glance, this is not a practical idea.
At second glance, however, this is not a practical idea.
At third reading, this is still a totally unworkable idea. It requires the users who are being robbed to sit back and wait for the robbers to grow weary of the robbing and finally stop! That is NOT "power to the people". It is expecting passivity to the sheep.
Not going to happen, IMHO.
And the part about flagging the worst abusers?
That will be most helpful. Depending on users to give up rewards while the robbers co tinue to rake them in will be fruitless. Shining light on the offenders will increase awareness, but will have no other effect since there is no penalty for them.
Nope, no remedy.
They arranged these things knowingly.
They are following their plan.