Metaplane, an automated platform for data observability, aims to provide a human-in-the-loop experience by not overwhelming users with notifications. To effectively manage Metaplane alerts in Slack, users need to understand what the alert is about and evaluate its relevance, then provide feedback such as marking it as normal or assigning it to someone specific. This feedback helps improve the system's ability to distinguish between normal fluctuations and genuine anomalies over time, leading to a better data observability experience for the user.