The crux of the matter. There's no reason NOT to use PGP other then sheer laziness or incompetence. If you're too lazy to figure it out, you will pay the price. If you're too incompetent or your intellect is inferior to most.. then you shouldn't be involving yourself in things that could/will harm or penalize you legally. Safe-mail could be be run by the top Mossad and CIA techs for all it matters. If you're using strong PGP encryption, it doesn't matter.. the contents of your communications are safe. And if you're logging into the service via TOR, your location can not be determined. It is as simple as that.