The anecdotal method
Which is a type of research where information is gathered through observation, interviews, and casual conversations. It’s qualitative research which is not controlled enough to follow the scientific method.
User experiences are subjective because everyone’s a little different. We rely on user anecdotes and testimonies to understand how and why people do what they do. As much as possible, anyway.
It’s like telling stories at a dinner party that people choose to engage in or not. Anecdotes are insightful when others are in on it.