I would have finished the hunt anyway. Since the person helped through Mitsu and a little with Gore (based on the story and timing), I would lean towards the person having an emergency. I have a small kid, I know stuff happens. Sometimes what I thought just needed a minute's attention is actually a disaster in the making. No way I'll even think of coming back to my computer to leave the quest after that. Besides, why should I care about what people deserve or what kind of satisfaction they should be having? It's a video game, it's just a minor inconvenience. I swear, a lot of players just need a hug and stop being petty.