Once qbittorrent has stable I2P support, then blocking sites like megaup and 1fichier will be completely useless. People will just download I2P and qbittorent, find a tracker on the darknet, and start downloading.
Wouldn't surprise me if we were to see the rise of emule,DC++, and similar stuff over I2P.
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.
I wish it would be as easy to install as typing apt-get install i2pd and just answer a few questions. (Or even better, have it as advised package off qbittorrent)
I'll look into the script to see what it's doing before trying an install, but most users either blindly run the command or won't bother.
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.
I'm currently using qBittorrent in "mixed mode" (clearnet + i2p), and honestly it's amazing, even though there's no current DHT implementation for i2p. Sure, you have to configure your client to automatically add the i2p trackers and everything, but it's a huge step forward IMO.
I've also tested how one could "transfer" clearnet torrents to i2p and it went pretty well, even though you have to modify the original .torrent file to be accepted in some i2p trackers (I used postman tracker to test it, and they only accept torrents which all announce URLs are within i2p).
In general, I've found qBittorrent's implementation pretty stable and suitable for day-to-day use, even though it lacks some features.