-determine that the user keys have "full" validity. This means that
-the server must fully trust at least one person whose signature on the
-connecting user's key would validate the user. This would generally be
-the server admin. If the server admin's keyid is XXXXXXXX, then on
-the server run:
+determine that the user IDs on their keys have "full" validity. This
+means that the server must fully trust at least one person whose
+signature on the connecting user's key would validate the relevant
+user ID. The individuals trusted to identify users like this are
+known in the Monkeysphere as "Identity Certifiers". In a simple
+scenario, the host's administrator would be trusted identity certifer.
+If the admin's OpenPGP keyid is `$GPGID`, then on the server run: