With more people commenting on reviews, it seems like a good time to allow the option to prevent certain users from commenting on your own reviews.
To do this, you must be on one of your reviews. Hovering over a comment will give you the option to block users like this:
Once a user is blocked, they can no longer make new comments on your reviews and their past comments will appear like this:
This also gives you the option to unblock that user which restores all of their previous comments and enables them to comment once again.
If anything isn't working like it should, please let me know...