[@gautamgupta Participant 16 years ago]

The bbPress development (a.k.a. trunk) version allows you to choose what that link should link to (profile or website). But as you’re using 1.0.2, you can change <?php post_author_link(); ?> to:

<a href="<?php echo esc_attr( get_user_profile_link( get_post_author_id( $post_id ) ) ); ?>"><?php post_author( get_post_id() ); ?></a>

That should probably work…