When you join a server and before your character spawns, you have the option to select the players from the server list. The players you select will get a notification that you selected them. If a player is selected, they receive a message that, if accepted, will enable the two players to see each other's nametag. That way, groups can play together. It also allows people to stay anonymous if they want to. I can elaborate if you would like me to. What are your thoughts?