Are y'all actually torrenting Linux ISOs. Cus I recommend. Its way faster and fun to have a collection of like 30 distros and try and new branch of the larger Linux tree. I just assume its a joke but I only started torrenting Linux ISO because of seeing it replied so much lol.
It downloads the packages you need during installation, instead of using the contents of the ISO as a kind of "offline repository". Depending on the distro and installer, it often downloads more up-to-date packages compared to a full ISO, so you don't have to update the system instantly after installation.