As for new buyers, if a new buyer really wants something I'm sure a reputable seller would be willing to do an out-of-escrow and vouch for them, that way the buyer can message any seller he wants to deal with and direct them to a forum topic where an established seller has said "all good here".If you are using PGP then there really isn't much to worry about as far as buyer-anonymity goes, unless you are PGPing your address to an LE poser-seller (can't be helped, but at least this way you have plausible deniability).