restore default plaintext listener

oragono.yaml

@@ -12,20 +12,20 @@ server:
 
     # addresses to listen on
     listeners:
+        # The standard plaintext port for IRC is 6667. This will listen on all interfaces:
+        ":6667":
+
         # The standard SSL/TLS port for IRC is 6697. This will listen on all interfaces:
         ":6697":
             tls:
                 key: tls.key
                 cert: tls.crt
 
-        # The standard plaintext port for IRC is 6667. Since using plaintext over
-        # the public Internet poses security and privacy issues, we recommend using
-        # plaintext only on local interfaces:
-        "127.0.0.1:6667": # (loopback ipv4, localhost-only)
-        "[::1]:6667":     # (loopback ipv6, localhost-only)
-        # If you need to use plaintext on non-local interfaces, comment out the above
-        # two lines, then uncomment the following line:
-        # ":6667":
+        # Since using plaintext over the public Internet poses security and privacy issues,
+        # you may wish to use plaintext only on local interfaces. To do so, comment out
+        # the `":6667":` line, then uncomment these two lines:
+        # "127.0.0.1:6667": # (loopback ipv4, localhost-only)
+        # "[::1]:6667":     # (loopback ipv6, localhost-only)
 
         # Example of a Unix domain socket for proxying:
         # "/tmp/oragono_sock":