CLEAN : 'He's a hero': Beijing residents react to whistleblower doctor's death

The transcript covers a range of topics, starting with an introduction and general overview, followed by a discussion on Google Sheets and its alternatives. It then moves into personal reflections and insights, before concluding with final thoughts. The conversation is informal and touches on various unrelated topics, making it somewhat disjointed.

What was the reaction of the person who got mad?

What does the phrase 'It's useful' refer to in the context?