An official Diablo lore historian once had to hand-transcribe "all of the words" spoken in the first two games because Blizzard hadn't kept track of them
Blizzard has people who ensure the swathes of lore across World of Warcraft, Diablo, and more are kept in mind when new stories are being written. One of them, though, had the unenviable task of hand-
Source: gamesradar.com