SSC wrote an interesting thing about this:
http://slatestarcodex.com/2015/07/22/freedom-on-the-centrali...Tl;dr, If you build a service that offers freedom, the first users are going to be the people that don't have freedom elsewhere. Which is mostly unsavory people. So voat attracts radical right wingers that are banned everywhere else. Torrents are mainly used for infringing copyright. Tor is full of illegal and disturbing content. And bitcoin is mainly used for shady stuff like ransomware.
