It may seem unsettling, but crew members document every activity of the guests

via google

Due to the expectation for crew members to maintain a high level of politeness and professionalism with passengers, they often don’t have the opportunity to express all their thoughts. Hence, cruise ships maintain detailed logs documenting every aspect of the journey. These records encompass significant events like fires or minor occurrences like guest comments. These logs serve a crucial purpose in preserving a comprehensive voyage record.

All of this information aids the incoming crew in thorough preparation, identifying potential hazards, and the most effective methods of handling them. It’s likely that the log also serves as an outlet for venting frustrations at times.