1. function ray_bp_page_title( $title ) {
  2. global $bp;
  3.  
  4. if ( bp_is_member() ) {
  5. $title = str_replace( $bp->displayed_user->fullname, $bp->displayed_user->userdata->user_login, $title );
  6. }
  7.  
  8. return $title;
  9. }
  10. add_filter( 'bp_page_title', 'ray_bp_page_title' );