In a metric dashboard for Reddit, what would you track?

When answering this question, focus on identifying a variety of key performance indicators (kpis) that are crucial for reddit's operation and success. Discuss metrics related to user engagement, such as active users, post interactions, and content sharing, to give a holistic view of platform activity. Additionally, consider metrics that gauge user acquisition and retention, content quality, and operational efficiency. Be sure to provide rationales for why each chosen metric is important and how it can help in decision-making or in improving the platform’s performance and user experience. For added depth, you might also discuss how you would visualize these metrics to convey information effectively.