Well - a buddy of mine rolled this a while ago: https://www.ratemyshootinginstructor.com
It is a good idea, at first, however, I think that there are issue here too. For example, Frank is rated/listed on here and the reviews are all 5-star, glowing.
https://www.ratemyshootinginstructor...frank-proctor/
I think the trouble is really the level that the reviewer has... That's a bummer to me.