Product design question
Improve Facebook comments.
- Meta
- Product design
- Easy
Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.
Start a mock interview on this question · Mock interview from a job description
What this question tests
Whether you can find a specific weakness in a mature, well-known feature and propose a targeted improvement.
How to approach it
- Clarify what is being improved: comment quality, engagement, or moderation, since Facebook comments already has broad usage.
- Identify the core pain point: low-quality or toxic top comments burying thoughtful replies, especially on public posts.
- Segment by context: comments on a friend's post behave differently from comments on a public page or viral post.
- Prioritize ranking quality on high-traffic public posts, where toxic or spam comments do the most damage to experience.
- Propose a concrete change: better comment ranking that weighs relevance and reply quality, plus lightweight tools like comment filters for owners.
- Define success metrics: rate of meaningful replies to top comments, with a guardrail on reports or hidden comments.
What a strong answer includes
- Picks a specific, real pain point, low-quality top comments on public posts, instead of a vague make it better.
- Segments by context, friend posts versus public pages, since the problem is concentrated in one area.
- Proposes a concrete ranking or filtering mechanism, not just more moderation staff.
- Names a guardrail, hidden or reported comment rate, to check the change actually improves quality.
Common mistakes
- Proposing a broad redesign of comments instead of a targeted fix for a specific pain point.
- Ignoring that the problem differs sharply between private friend posts and viral public posts.
Likely follow-up questions
- How would you rank comment quality without heavy-handed censorship?
- What would you measure to know page owners are happier with the new ranking?
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Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop