Stewart Ritchie, founder and managing director at Powered By Coffee, discusses how his agency, which specializes in WordPress development for the media industry, utilizes FusionAuth to address their clients' authentication needs. FusionAuth is employed to centralize user data, manage access to content, and handle user authentication and access control, which significantly improves performance by reducing the reliance on WordPress's user management system. This approach allows for enhanced caching and performance on high-traffic sites, ultimately reducing server requirements. Although initially introduced to FusionAuth by a client, Ritchie continues to advocate for its use due to its developer-friendly features, API options, and reliable support. He mentions using various FusionAuth setups, including a managed cloud instance and Docker configurations, and expresses a desire for a self-triggered database backup feature on the enterprise support plan.