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 for.