But the truth is there isn't much that the FCC can do at this point. Under the current regulations and laws, the FCC has little to no power to do anything, even if it becomes blatantly obvious that Comcast is intentionally blocking traffic. The reason is simple. The FCC Internet policy is simply that. It's a policy. And there is no real enforcement muscle behind it that would require Comcast to do anything. So until a Net neutrality law is passed or the FCC imposes some kind of regulation or rule, which Chairman Kevin Martin has been adamantly opposed to doing, not much is likely to come of this complaint.
It would be outstanding if someone could find a rationale for seeking an injunction against Comcast to prevent this kind of disruption.
I'm not sure that they interfere only with BitTorrent traffic. My file transfers with another Comcast subscriber using AOL's AIM slow down to a crawl most of the time.