Followup on conversation on improving asynchronous communication

In last Fridays Silver meeting (8 January 2021) when we were discussing 
meeting times, the topic of improved asynchronous communication tools 
came up, with Teams coming up as a suggestion. In our planning call, 
Michael noted that using tools not generally used by W3C groups might 
create unexpected problems, and if a tool that requires a subscription 
has an equivalent in use at W3C already, W3C would be unlikely to cover 
the subscription cost. Before making a decision to migrate to a specific 
tool, Michael suggested identifying the use cases that we're trying to 
meet, so we can either figure out how to meet them with current tools, 
make improvements to current tools, or make an informed decision about 
new tools to adopt. Some that come out of recent discussions:

  * Live automated captioning / transcript of meetings;
  * Archived chat tool that's easy to use;
  * Easier minutes creation and editing.

Are there other use cases you see for our communication / participation 
tools? Please list them in a reply to this message, or in a Silver call. 
Keep in mind that we can't make specific promises at this stage, but a 
good set of use cases will help us decide on next steps.