[@robkk Moderator 10 years, 7 months ago]

@swstarone this could be bbPress theme compatibility/WordPress theme related issue, an seo plugin could possibly cause this, title tag updates in WordPress could cause this too.

you can notice that there no username or nickname displaying on the page.

This could be a bbPress theme compatibility issue/theme issue. The title could be outputted if the page is_single(), but the user profile pages do not do this.

https://bbpress.trac.wordpress.org/ticket/2545

This php code snippet could help with the issue though.

function rkk_add_title_to_user() {
    ?>
        <h1 class="entry-title"><?php bbp_displayed_user_field( 'display_name' ); ?></h1>
    <?php
 }
 add_action( 'bbp_template_before_user_details', 'rkk_add_title_to_user' );