Comment 7 for bug 740005

According to the libtorrent author, libtorrent is NOT sharing trackers for torrents that are private.
Has anyone of you actually experienced the problem and did you just assume it was unsafe?

If you really experience this problem with private torrents then this likely means that the torrent was not indicated as being private when created. In that case, the problem comes from the torrent creator. If the private flag is not set for such torrents, DHT is also be used (so tracker exchange is the least of your problems).