Its not fair for you to not pay the bounty hunters for their hard work. We filled a form that contained the informations in the new form you requested people to refill and submit again. You know for some some reasons, its not everybody that participated in the bounty that will have the opportunity to see the form and fill it up. That's why I think you shouldn't have used that as a criteria to pay people for a work they did for you. And if you must request for that for some reasons best known to you, then sending an email to all bounty hunters would have been the best the best option. This doesn't speak well of your profile as a bounty manager at all!
The bounty manager(s) is a facilitator and not the bounty-issuer. They will not be held liable in the event of a breach of contract by the bounty-issuer or failure to fulfill their obligation. Facilitation is NOT an automatic endorsement of product or service being offered, unless explicitly stated.