I have a good friend who plays the Gamecube game and a few of their favourite villagers moved out recently, so I wanted to try to help them find ways to make it more likely that their faves will stay. I overheard someone claiming that if you write letters to your villagers but don't send the letters, that the villagers won't leave until you send them. However, the post was very old, on a website I'm not a member of, and very vague, so I wondered if anyone could confirm here if it works or is a rumor?