diff --git a/degesch.c b/degesch.c
index 04a09e8..f5c0def 100644
--- a/degesch.c
+++ b/degesch.c
@@ -1157,8 +1157,13 @@ input_el_new (void)
 
 // --- Application data --------------------------------------------------------
 
-// All text stored in our data structures is encoded in UTF-8.
-// Or at least should be.  The exception is IRC identifiers.
+// All text stored in our data structures is encoded in UTF-8.  Or at least
+// should be--our only ways of retrieving strings are: via the command line
+// (converted from locale, no room for errors), via the configuration file
+// (restrictive ASCII grammar for bare words and an internal check for strings),
+// and via plugins (meticulously validated).
+//
+// The only exception is IRC identifiers.
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -