I don't see the problem here. Bitbook has never denied that they were doing this, they were open about this issue from the time someone pointed it out earlier. The thing that is bugging me here is why are you asking for a bug bounty on this , I can understand if it was the user who pointed it out earler still I don't think this was a bug, it was just how the site was designed. They have added the feature to now check for all odd shifts which is good.