Sample code showing how to bypass the Force Login plugin for BuddyPress registration

wp-force-login-buddypress.php

<?php
/**
 * Bypass Force Login to allow for exceptions.
 * 
 * @return bool Whether to disable Force Login. Default false.
 */
function my_forcelogin_bypass( $bypass ) {
  // add exception for buddypress login URLs
  if ( function_exists('bp_is_register_page') ) {
    if ( bp_is_register_page() || bp_is_activation_page() ) {
      $bypass = true;
    }
  }
  return $bypass;
}
add_filter('v_forcelogin_bypass', 'my_forcelogin_bypass', 10, 1);