I mean, this is the first implementation in qbittorrent.
Imagine if at some points it ships a complete implementation by default, and everyone using qbittorrent could be reached via i2p. We’re not there, and not terribly close, but implementing i2p was an important step to get there.
I2P, the invisible internet protocol allows for anonymous torrenting (getting movies, games, etc. without paying). It’s fairly old and robust, but lacks actual people using it. Now a program that many people already use has included the option to use this.
This alone may increase the usage of this system, and make it more useful.