Following is a ChangeLog entry and patch.
2008-04-24 Ralf Angeli <address@hidden>
* textmodes/reftex.el: Explain in a comment why
`reftex-extra-bindings' activates key bindings reserverd for
users.
--- reftex.el.~1.86.~ 2008-04-19 08:52:29.000000000 +0200
+++ reftex.el 2008-04-24 22:19:18.000000000 +0200
@@ -2403,7 +2403,10 @@
"bibtex"
'(define-key bibtex-mode-map "\C-c&" 'reftex-view-crossref-from-bibtex))
-;; If the user requests so, she can have a few more bindings:
+;; For most of these commands there are already bindings in place.
+;; Setting `reftex-extra-bindings' really is only there to spare users
+;; the hassle of defining bindings in the user space themselves. This
+;; is why they violate the key binding recommendations.
(when reftex-extra-bindings
(loop for x in
'(("\C-ct" . reftex-toc)