On Sep 6, 2013, at 8:21 PM, Melinda Shore <melinda.shore@xxxxxxxxx> wrote: > when you vouch for someone's identity - in an authoritative > trust system - you're also vouching for the authenticity of > their transactions. This is what I mean by "a high bar." Signing someone's PGP key should mean "I know this person as X," not "this person is X."