I think I'm missing something...
PGP as such is not chatty and doesn't (have to) contain any metadata. The email (as the most common transport medium) is.
So how the NSA are getting any more metadata and links between participants in a conversation from a PGP message as opposed to a plaintext email is beyond me.
If it's just the old prejudice that everybody who uses encryption has something to hide and/or is naughty, then it's an old hat. Let them log/store all encrypted emails, if they like. There's about the same metadata in them as in plaintext emails. Time to attach PGP encrypted cat pictures and videos to every message. Or hide PGP encrypted stuff in attached pictures (steganography). Or both.
Biting the hand that feeds IT
