how to remove ip

Actually, it doesn’t matter, the ratings are just for logging purposes. Removing it will not do anything to the ratings as it is stored separately.

You can disable it by just removing this line https://github.com/lesterchan/wp-postratings/blob/master/wp-postratings.php#L578

Thank you Lester. I have disabled the line but the IP addresses remain. Any suggestion?

That line is to prevent future entries. If you want, you can use PHPMyAdmin and truncate (clear the contents) of the wp_postratings table.

Thanks Lester, you’re right, it works well!