function bbp_make_current_user_keymaster() {

	// Catch all, to prevent premature user initialization
	if ( ! did_action( 'set_current_user' ) ) {
		return;
	}

	// Bail if not logged in or already a member of this site
	if ( ! is_user_logged_in() ) {
		return;
	}

	// Bail if the current user can't activate plugins since previous pageload
	if ( ! current_user_can( 'activate_plugins' ) ) {
		return;
	}

	// Cannot use bbp_get_current_user_id() during activation process
	$user_id = get_current_user_id();

	// Get the current blog ID, to know if they should be promoted here
	$blog_id = get_current_blog_id();

	// Bail if user is not actually a member of this site
	if ( ! is_user_member_of_blog( $user_id, $blog_id ) ) {
		return;
	}

	// Bail if the current user already has a forum role to prevent
	// unexpected role and capability escalation.
	if ( bbp_get_user_role( $user_id ) ) {
		return;
	}

	// Make the current user a keymaster
	bbp_set_user_role( $user_id, bbp_get_keymaster_role() );

	// Reload the current user so caps apply immediately
	wp_get_current_user();
}