If this indeed turns out to be true, and it is proven Comcast is throttling BitTorrent users to the point that BitTorrent is not usable this is going to get ugly. Their are unconfirmed reports that Comcast is preventing seeding of torrents by the usage of Sandvine broadband traffic management equipment.
I use BitTorrent on a regular basis for valid reasons to include distributing my podcast. So much for network neutrality! Thank goodness I am not a Comcast customer. The Register