The switch from using shit like Napster/LimeWire/eDonkey/etc to BitTorrent was fairly easy. It was the lack of the torrent app itself not having a file search in it that made things feel like they went backwards.
Before Napster and the rest, you’d do a web search for “warez” and sift through shady sites to find a working download link. After Napster, you’d just search for what you want in the app. I know there are torrent apps that do this now, but I don’t know how wide of a reach they actually have. I still just go to a tracker’s website and find things to magnet link.
eDonkey was an easy way to share something with a group of friends via P2P!