[madaxe]

Reading it, they have some pretty precise metrics on user accounts, and insights into his messages, so I'm going with "it was all unencrypted".

[aianus]

Messages between buyers and sellers are generally encrypted end to end using PGP by the users so that information, which includes shipping addresses, is likely safe.

[st0p]

Depends on where you live. Over here in Holland (were drugs are less of an issue), most of the messages are not encrypted.