Guests are expected to complete the title before writing their full name. For example, “Mr.”, “Mrs.”, “Ms.”, or “Miss” would follow naturally from that initial letter, depending on personal preference.
This tradition comes from older, more formal styles of correspondence. At a time when etiquette played a larger role in everyday communication, small details like this were considered standard and widely understood.
However, modern guests are not always familiar with these conventions. As a result, something meant to guide people can end up confusing them instead.
