Hi,
If you are looking for a plugin which allows to put comments on product reviews then check this one out https://shop.tmotions.com/comments-plugin .
The plugin will create a simple yet effective method to manage comments on your products’ reviews which will ultimately going to affect the overall sale of the product. Through edit or delete functionality, admin will be able to get rid from the bad comments from the users.
For more details please contact us at [email protected]
Kind Regards
TMotions