However, the primary driver of the WBFS format's popularity was game piracy. The format made downloading and storing pirated games incredibly efficient. Because the Wii was easily modifiable, the distribution of WBFS files became rampant on torrent sites.

Ultimately, the story of the WBFS file format is a testament to the ingenuity of the gaming community. When manufacturers cease supporting a console—as seen with the closure of the Wii Shop Channel and the end of the console's production life cycle—it falls upon archivists and hobbyists to keep the platform's history alive. The WBFS format did not just make pirating or backing up games easier; it provided a sustainable, efficient, and highly organized framework for video game preservation, ensuring that the defining motion-controlled era of gaming remains playable for future generations.

For example:

A typical Wii game rarely fills the entire disc. Super Mario Galaxy might only utilize 3 GB of the disc's capacity, leaving the rest as empty padding data. If a user were to rip a game using a standard ISO format (a 1:1 copy of the disc), they would be forced to store the full 4.7 GB or 8.5 GB, wasting significant space on the hard drive. Furthermore, the file system of the Wii (WBFS) was initially designed specifically to manage these games, stripping out the unnecessary padding to create a leaner, more efficient library.