because this is a lesson for all of us as bounty hunters ...
I don't understand what lessons you are trying to pass to hunters by having a list of failed bounties because it isn't going to help in any way.
Bounties like Freldo, STiB, Depository are what I can remember for now and it will be an unending list if we are to continue.
Advise to hunters is that they should be careful in selecting bounties and it's not every bounties that you come across that's worth signing up or participating.
^I agree. There is no use of making lists about the list of bounties scammed. Instead you should have made some list of advices, some red flags/signs of a failed bounty and ask others to put some more advices coming out from their experience. First one I would like to add is to always try to participate in bounties managed by competent managers. As long as you are participating in bounties managed by such managers, there are very less chances of getting scammed.