Scott Plunkett, founder of game server management company Contaim, is using FusionAuth to manage authentication for his application. He chose FusionAuth over competitors due to its flexibility and cost-effectiveness. Contaim uses FusionAuth for user management, OAuth, social sign-on, and two-factor authentication, solving issues such as managing the authentication lifecycle and offering OAuth capabilities. The company runs FusionAuth on a Debian machine behind an ELB, with plans to move to Kubernetes in the future. Despite some minor irritations, Scott praises FusionAuth's benefits and encourages others to share their community stories about using the platform.