The tutorial on scraping Next.js sites highlights the framework's popularity and ease of use, emphasizing its foundation on React for building server-side rendered and statically generated websites. It explains how the React hydration process—which converts server-generated HTML into interactive client-side applications—facilitates web scraping by embedding necessary data in JSON format within special DOM nodes. The tutorial provides strategies for extracting data from these nodes, either through the __NEXT_DATA__ script for older versions or self.__next_f.push functions in newer versions with the App Router. While this method simplifies data extraction, it may require additional parsing and faces limitations like partial data retrieval and potential blocking by anti-bot technologies. The text concludes with solutions for overcoming these challenges, such as using various tools from Bright Data to enhance the scraping process and manage anti-scraping measures effectively.