[cloudking]

Blizzard uses BitTorrent to distribute their games and patches https://wowpedia.fandom.com/wiki/Blizzard_Downloader

[plorkyeran]

"was" is an important word in the first sentence there. They finished moving away from BitTorrent in 2013, and they'd phased out actual p2p transfers in favor of just using the BT client to download from a web seed a while before that.