Coppersurfer.tk one of the most popular torrent trackers is getting adopted by the Greek pirate party after it received several threats and went through many struggles. The pirates pledged to protect the tracker from further threats after the adoption.
Both services accept bitcoin donations. The Greek pirate party is the only political force to
accept bitcoin donations in Greece, they've been doing so for quite some time too! They also run their own litecoin pool!
Article on torrentfreak:
https://torrentfreak.com/pirate-party-adopts-torrent-tracker-to-fight-legal-pressure-150610/
