I think it's can be good idea. Because when i use boy who holds girl, i need check it again and again.
Jump opportunity (for flying tiles).
Group access (group/guild members).
Also it's can be nice idea for making text with group image over the user's head when you hover cursor on user profile.
Disable/Enable names/groups over the user's head.
Adding administrators and moderators to keep order.
A list of users who can share links in the general chat.
Separating youtube other website links from location links.