Here is the use case:
We are a voluntary membership POA. So we would like to clearly show in the directory who is a paid member and who isn't. Show an icon in the directory entry for each member (not account) that is in a group (our current group is 2019 Paid Membership).
Mechanism:
Group has an icon assigned (or not). If assigned, it would display next to the individual's entry in the directory.
Alternate use cases:
Shows Board & Committee members
Show a group of people who are runners who might want to do a group run (this would be a hard one to administer at present - but if members could select membership in non-admin groups then people could self generate group membership. Social network-esque.
Show what subdivsion a member is in (based on groups assigned by admin on geography)
Consider adding a list of the member's group affiliations to the Member Profile.
For our HOA, it might be nice to have an icon for owner, renter, contractor, manager/management. People don't read. The visual helps. No different that people who text with emojis. Sad, but that's where we are.