Question: Is it a good idea to use face mask?

Answer passage (source: CDC):
page_title: Cloth Face Coverings: Questions and Answers
section_headers: When do you need to wear a cloth face covering?
section_content: A cloth face covering should be worn whenever people are in a community
setting, especially in situations where you may be near people. These settings
include grocery stores and pharmacies. These face coverings are not a
substitute for social distancing. Cloth face coverings are especially
important to wear in public in areas of widespread COVID-19 illness.

Reviewer feedback on this answer:
A good but not great answer. It confirms that face coverings are important and some locations to wear them. Doesn't really go into the why of it though
This information does not answer the question. This information does not provide any explanation of whether or not it is a good idea to use face mask during Covid-19, instead, it gives information about places where people should be wearing cloth face covering.

Reviewer ratings:
Acceptable
Bad

Answer passage (source: CDC):
page_title: Cloth Face Coverings: Questions and Answers
section_headers: What type of cloth face covering should be worn?
section_content: Cloth face coverings can be made from household items or made at home from
common materials at low cost.

Reviewer feedback on this answer:
This answer is irrelevant to the question. The answer is about materials that can be used to make cloth face coverings and does not explain why it is a good idea to use face mask during Covid-19 outbreak.
This talks about how to make a mask but nothing about the importance of them or why you should wear one. Missing a lot of information here

Reviewer ratings:
Bad
Could be Improved

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: How to Protect Yourself
Does CDC recommend the use of facemask or face coverings to prevent COVID-19?
section_content: In light of data about how COVID-19 spreads, along with evidence of widespread
COVID-19 illness in communities across the country, CDC recommends that people
wear a cloth face
covering to cover their nose and mouth in the community
setting. This is an additional public health measure people should take to
reduce the spread of COVID-19 in addition to (not instead of) social
distancing, frequent hand cleaning and other everyday preventive actions. A
cloth face covering is not intended to protect the wearer, but may prevent the
spread of virus from the wearer to others. This would be especially important
in the event that someone is infected but does not have symptoms. A cloth face
covering should be worn whenever people must go into public settings (grocery
stores, for example). Medical masks and N-95 respirators are reserved for
healthcare workers and other first responders, as recommended by current CDC
guidance.

Reviewer feedback on this answer:
This answers the question directly. The answer provides information and explanation of why people should be wearing face mask or cloth face covering in community setting.
This is a better answer that goes into greater detail and also links to more information. It talks about the where, when and why and also gives some suggestions on what kind of masks to wear.

Reviewer ratings:
Excellent
Excellent