[mykalberta]

They likely prioritize packets and set torrent sites at a lower priority since they are more BW hogs than other normal surfing.

IMO Comcast doesnt have a responsibility to make sure bit torrent works fast, just that the majority of their customers have a fast experience. Its also possible however unlikely they changed the routing scheme to thwart those peer to peer apps.

At UNC especially they are testing peer to peer spider schemes on different routing algorithms. Its a way ISPs can limit their traffic while still adhering to the subscriber contract.