To efficiently track replies to recent posts, users can utilize the "Subscribed Threads" feature in the "Quick Links" drop-down menu, which allows them to see new posts in threads they follow. Subscribing to threads can be done without email notifications by adjusting settings on the "Edit Options" page. However, changing subscription settings only applies to future posts, requiring manual subscription for previous threads. Some users prefer using the advanced search method to find replies by entering their name and filtering by date. Overall, the discussion emphasizes the benefits of using subscription features for better engagement tracking.