Does this make sense? It assumes your weblog system allows you to define a small, say 5 character, private encryption key, or even generates one for you. You don't need to know it really cause only the system ever uses it...
Entry ID # 00345 requested a key at 20050503202312
Anyways, so at this point, using the AJAX and the DOM, the comment form now has a uniquely created "passkey", without which the server will not accept the comment...
Hrmmm... hehehe I should've put a disclaimer saying "this was just a quick idea which made my head hurt to think about and I figured I'd just put it up there"... ;)
Thanks for the feedback all, whichever response channel you used! :)