You may use them but its strictly disallowed on the following nodes due to DMCA & other complaints:

• All US locations
• Sydney, AU
• Frankfurt, DE
• Espoo, FI
• Hong Kong, HK
• Pune, IN
• Tokyo, JP
• Warsaw, PL
• Singapore, SG
• Zurich, Switzerland
• Hampshire, UK
• London, UK
• Johannesburg, ZA

Romanian & Russian locations are generally most friendly for P2P (BitTorrent) applications and thus you are advised to use them.