I'm the project coordinator for dattebayo's Naruto. The 24-hour release process is highly optimized to have a mix of quality and speed. The single fastest release we ever did was 10 hours after it aired, but yes, typically its 20-24 hours. As far as scale, Naurto is the most popular fansub known, and it holds the records as far as I've seen for torrent occupancy, at least in fansubbing. Those numbers you pasted are typical, but back before dattebayo worked on this project, a torrent on a.scarywater.net had 59000 leachers to 37 seeds at one point. (This was Darkanime's Ep 59 if anyone is keeping track). A typical episode gets about 200,000 downloads via bittorrent in about a week, and an estimated additonal 4000-7000 from IRC Driect connection bots and hosted websites. Bittorrent revoultionized the distrobution of fansubs, converting it from a system of private FTPs and bots to a system where anyone can enjoy them.