DHT and PEX should not be disabled on rtorrent configuration
On https://tails.boum.org/contribute/how/mirror/automatically_download_and_seed_Tails_over_BitTorrent/ it is said that the DHT is disabled on rtorrent.
As far as i understand it, there is no point on it. DHT allows more decentralization. It reduce the requirement to use a tracker.
It is the same for Peer exchange mechanism.
It should be nice if both can be enabled on this sample configuration file, and the mention to DHT removed from the website.