Probably all of you have heard about PeerGuardian (PG), the P2P utility program that is able to block incoming connections based on IP blocklists. PG's blocklists contained IP addresses of known anti piracy agencies, various government entities, spyware oriented servers, etc and the software effectively prevented these addresses from making contact with your BitTorrent client or any other file sharing program. For those very reason, PG was hugely popular among the file sharing community back in...