I use it to maintain a user gaming community.

Man Of Teal revolves around "Roller Coaster Tycoon 2" game which went open source and added multiplayer abilities; I host the game servers and require gamers to join the site before they are allowed to play the game with others. Registration is required to verify email addresses and let the players post photos of the work done on the gaming servers.

 Keeping a membership database allows them to join each other outside the games.

https://manofteal.com