That upstream on BitTorrent is because people forget to close out of it when they are downloading and don't change their upload settings. I have a hard time imagining "Muricans' know about seeding.
I think it's more simple than that. It's because there's little on a home/work use computer that requires uploading. All the remaining top 10 items just represent commonly frequented net activities. BitTorrent is the only one that "requires" constant uploading.
I would imagine it's also because the upstream include packets sent while people download, regardless of whether they seed after completion or not.
But it is still a zero-sum balance. In a vacuum, you can't seed more data is being downloaded. In absolute total within a vacuum of bittorrents....it has to be 1:1. So, this has to be about crossing country boundaries. That has to mean that more foreigners are d/l-ing from American seeders than vice versa. It sounds odd to me, but I don't see how this can't mean more bittorrent data is leaving the country than coming into it.
