I lay this firmly at Bountyquests' feet.
I submitted prior art to Bountyquest. I spent more than a year pinging BQ for ANY information about the bounty I submitted against. The answer was always "we're working on it". I never did get an answer from them.
I'm sure that there were many items submitted that weren't appropriate, but I put them blame on BQ for not following up with submitters. If they couldn't do something as simple as send an e-mail that said , "Sorry, but that's not appropriate", how are we to expect they followed up with anything else?