This should be a blog administrator post, but I’m not blog administrator. Anyway, I tracked down the bug in the comment code. Please let me know if you have any unexpected problems posting now by replying to this comment.
Of course, if you are having problems posting, you might not be able to reply, but I don’t think this was that kind of bug — comments were still getting through before the fix.
A note for Kaimi (and other WordPress users): The problem was with the ‘moderation_keys’ entry in the ‘wp_options’ table — the value included the line ‘& # 101′ (remove the spaces — I can’t remember how to escape properly in HTML — Kim??) which gets intepreted in a special way by the regular expression engine of PHP — hence the error ‘Unknown modifier ‘1’ in /home/seasons/public_html/wp/wp-includes/functions.php on line 1348′. The “unknown modifier ‘1’” is the “#1″ (I think).