I think the theory is that you should try, as you are now by writing that post here.. but make your own efforts and costs very minimal (also as you have done).. maximize the possibility that a random, individual person may find it, who cares (this is a great place for that).. leave breadcrumbs that can lead an interested party to valid actionable information; and lastly, limit exposure to yourself for retaliation if it is that sort of situation..