You could do this using the is_single conditional tag then nest an if_category within that (assuming that each author is using their own category)
Thanks for the hint. What would the code look like? I tried using this:
\
<?php if ( is_category(‘3’) (‘This guy sucks at php’) ) : else : ?>
<?php endif; ?>
\
but it didn’t work. Do you know what I did wrong?
Try “in_category” instead of “is_category”.
Thanks, that did the trick!