Basically, Tor only works if the protocol you're running on top of it doesn't do stupid things. For instance, Tor doesn't work if your browser helpfully sends g

Basically, Tor only works if the protocol you're running on top of it doesn't do stupid things. For instance, Tor doesn't work if your browser helpfully sends geolocation information. Likewise, Tor doesn't work if you happily make un-Torred connections to possibly malicious IP addresses retrieved via a Tor link, which is more or less what the vulnerable Bittorrenters were doing. (You can run the entire Bittorrent protocol over Tor, but it's painfully slow and a big load on the network.) In short, Tor may have real issues, but this is not Tor's fault.