Question: How should you determine if an event needs to be postponed?

Answer passage (source: CDC):
page_title: FAQs for Administrators and Leaders at Community- and Faith-Based Organizations
section_headers: Get Prepared
What are things to consider when determining if a group event or gathering needs to be postponed or canceled?
section_content: Consult with local public health officials and continually assess current
conditions. Be sure to regularly review the latest recommendations from the
White Houseexternal icon and
CDC for all types of gatherings. When
determining if you should postpone or cancel a gathering or event, consider
the:

Overall number of attendees or crowd size.
Number of people attending who are at higher risk for serious illness.
How close together attendees will be.
Potential economic impact to attendees, staff, and the local community.
Amount of spread in local community and the communities from where your attendees are likely to travel.
Needs and capacity of the local community to host or participate in your event.

Read CDC guidance on mass gatherings and large
events.

Reviewer feedback on this answer:
This answer is completely sufficient because it details numerous ways an individual can determine if an event needs postponing.
This seems like a pretty good answer. It's not super detailed but does answer the question about what criteria one should be concerned about when scheduling an event and also some relevant links

Reviewer ratings:
Excellent
Acceptable

Answer passage (source: CDC):
page_title: Event Planning and COVID-19: Questions and Answers
section_headers: Event cancellations
When does CDC recommend that I cancel or postpone an event?
section_content: If there is minimal or moderate spread of COVID-19 in the community, CDC
recommends cancelling an:

event that includes 250 people or more. 
3/16/20 UPDATE: During the next 15 days, all U.S. events of 10+ people should be cancelled or held virtually. 
More Information on Mass Gatherings
Read the White House noticepdf iconexternal iconpdf iconexternal icon


event likely to have 10 or more people who are at higher risk of serious COVID-19 illness. This includes older adults and people with underlying health problems such as lung or heart disease and diabetes.

If there is substantial spread of COVID-19 in the community, CDC recommends
cancelling events of any size. See page 9 of CDC’s Community Mitigation
Framework or definitions of “minimal, moderate, and substantial spreadpdf
iconpdf icon.”

Reviewer feedback on this answer:
Another pretty good answer. I like that there's an update in here to show that it's not just stale information. There are multiple links where you can find more information about the question being asked
This answer is fairly decent because it talks about what to do if there is a spread of COVID in the area, however it does not have a list of reasons an event should be postponed.

Reviewer ratings:
Acceptable
Acceptable

Answer passage (source: CDC):
page_title: FAQs for Administrators and Leaders at Community- and Faith-Based Organizations
section_headers: Substantial spread of COVID-19 in the local community
Should my organization cancel or postpone an event if there is substantial spread of COVID-19 in the local community?
section_content: You should first follow the directions of your state and local authorities. If
authorities do not have specific directions related to cancelling or
postponing a group event or activity, read CDC guidance on community
events.

Reviewer feedback on this answer:
It's an okay answer but lacks much detail at all. There's a link to CDC guidance which is certainly useful but I think more should have been included in the actual response
While this answer does have to do with postponing an event, there is no information about determining if an event should be postponed, only to follow guidance.

Reviewer ratings:
Could be Improved
Could be Improved