More duplicated letters here: "Welll", "Southh", "Getss", "Helpped", "Yess", "Yess", "It'ss", "Heree", "Justt", "Fruitss", "Movingg", "Thinkk", "Apparentlyy", "Theree", "Seee". Most of them seem to come from the character Rehme, so it might be an effort to represent some kind of accent or speech pattern? I don't think it works very well if so.