http://xa63tpfoaqt3zru2ehxjjfbpadwj4ha6qsdvtcqtyr3b7hmt4iaq.b32.i2p/faq.html
To briefly summarize: Syndie's design as an anonymity-sensitive client application carefully
avoids the intricate data sensitivity problems that nearly every
application not built with anonymity in mind does not. By operating on the content layer, Syndie does not depend upon the
performance or reliability of distributed networks like I2P, Tor, or
Freenet, though it can exploit them where appropriate.