problem with Challenge question (captcha)

The challenge works to help prevent automated spam, but individual humans would be able to figure it out. If you’re having serious spam problems you may want to require membership/registration, which would enable much more protection.

Sorry, I’m working on my next book and can’t take on additional work for awhile. Here is what I use for one of my sites, which receives no spam via USP:

<?php global $user_identity, $user_ID;
if (current_user_can('read')) { ?>

<?php user_submitted_posts(); ?>

<?php } else { ?>

<?php // do something else ?>

<?php } ?>

You put it in your theme file where you want the form to appear. On second thought, if this code looks foreign to you, it may be recommended to try another solution.