Software has completely automated all of these steps. The only barrier is the initial set up, which a non-technical person can figure out over a weekend.
How could they commercialize it in ways they already haven't? There already exist good, free torrenting clients, and piracy is illegal. The most they could do is set up a subscription service for exclusive torrents which always have seeders, but that's already being done AFAIK, and it's illegal, so they can't really run ads on TV about it.