While not necessarily the best of use for so called "dark web sites", the fact that cryptos are added it means just freedom from the governments and the liberty to keep the anonymity that we unconsciously lost it. The usage spreads in every commerical context and it will be very soon when it will be globally accepted. Only if there would be a way that we could be free from the country institutions to be able to spend our freedom (aka cryptos) as we consider fit...