bp_core_boot_spammer( WP_User|WP_Error $user )

function bp_core_boot_spammer( $user ) {

	// Check to see if the $user has already failed logging in, if so return $user as-is.
	if ( is_wp_error( $user ) || empty( $user ) ) {
		return $user;
	}

	// The user exists; now do a check to see if the user is a spammer
	// if the user is a spammer, stop them in their tracks!
	if ( is_a( $user, 'WP_User' ) && ( ( is_multisite() && (int) $user->spam ) || 1 == $user->user_status ) ) {
		return new WP_Error( 'invalid_username', __( '<strong>ERROR</strong>: Your account has been marked as a spammer.', 'buddyboss' ) );
	}

	// User is good to go!
	return $user;
}