The act of sending a letter is an act of generosity, even if, in retrospect, it might seem reckless. Why regret one's generosity? Why regret one's impulsiveness, one's misjudgment of others? The inevitable discovery that someone is selling letters you'd written in trust is simply to discover an obvious human truth: there are those who don't cherish us as we'd cherished them, and had wished to be cherished by them.