Essay
First Rule of Usability? Don't Listen to Users
Jakob Nielsen · Nielsen Norman Group Free Intermediate
This backs the core of your answer: trust the emotion, not the diagnosis. Nielsen argues you should watch what users do rather than take their stated explanations at face value, because people are unreliable narrators of their own behavior. It is a short, sharp reminder to observe the flow instead of building whatever the last person asked for.
- Watch behavior, do not act on what users say they want
- Self-reported reasons and predictions are often wrong
- Collect opinions only after someone has actually used the thing