Although I appreciate the suggestion, there are a few negative arguments that immediately spring to my mind:
1. Our current method of media distribution actually works quite well.
2. Offloading media distribution would not speed up the web server or really help the site in any way.
3. BitTorrent is a very high-level distribution method which often requires significant system tweaking before becoming effective. If we endorsed this program, we'd have to provide some level of support for it, which would be a nightmare.
4. If we seeded torrents from our media server, people would be legitimately downloading our media, through our bandwidth, without viewing our ads. I don't think our servers host or our advertisers would be very happy with that.
Once you have downloaded something from PGC, I don't really care if or how you share it around with friends or strangers, as long as the file is unaltered (e.g. you don't try to splice off our logo). So you can seed any PGC torrents you want to, or share them over Kazaa, or dump them all over IRC, and it's fine with me...but I don't think we'll be actively involving ourselves in any of those schemes.