Add option to only send Shop Review emails once per customer

We use Judge.me to solicit reviews for our shop as a whole and not for individual products. Our store also sees a high number of repeat purchases. Right now, our returning customers are getting the same review request every time they reorder which is an annoyance. The workaround is to manually update the blacklist tags in Shopify which isn't scalable for us. Would love to see a setting that allows us to only send the Shop Review request just once.