The author started an a cappella group in college with no prior singing experience, eventually winning their university's Spring singing competition and performing national anthems and holiday shows. Years later, they attempted to join another a cappella group but were rejected. This led them to reflect on the importance of understanding different types of errors and how to categorize them effectively. Mux Data has introduced error categorization as a feature, allowing users to assign specific settings to an error code and classify it as either technical or business-related. This helps in reducing noise in error reporting, improving metrics accuracy, and focusing on urgent issues that impact viewer experience.