The easiest fix would be to get rid of the continuations. It would be just as easy to encode the comment_id in a form field as millions of other webpages do.
Ok so I looked at the source and found:
(def process-comment (user parent text ip whence)...
I don't see why it would be hard to submit "parent" and "text" as POST-parameters. User seems to be stored in a cookie anyway and ip should also be easily retrievable.
