Usefulness/purpose Of Ipfilters - Basics Of Torrenting

[cr4shu]

OK - hypothetically...

1. New matrix 7 movie came out and I was seeding it.
2. But in all of my wisdom I had an ipfilter.dat with many IPs blocked.
3. An FBI agent joins the swarm and asks a tracker for a list of peers.
4. He gets the list with me as a seed
5. Tries to connect to me but my ipfilter does not let him as he is on my blacklist

Question:
What is the point of ipfilters if the FBI agent sees MY ip and sees that I am seeding the file that he requested? Isn't it a definite proof of me being illegal?

Would appreciate if some knowledgeable individual would enlighten me regarding the indepth torrent workings or confirm that I got it right and ipfilters are useless

Thanks.