You are talking about a social credit score.
Two brilliant TV shows depicted how it goes wrong.
A sitcom Community did it first.
An episode of the anthology series Black Mirror had an equally powerful take.
Also, there were multiple attempts (1; 2; 3;) at dating apps that wanted to use this principle. It seems to me that they all failed, or shifted their model. Many guys are ready for a lot in terms of dating, but even they draw the line at being judged freely by people who don't have any repercussions for what they said about you.
In the age when Instagram and other social media apps are looking into turning off likes on photos as they know how much they damage people's mental health, looking to add an element of written reviews seems ill-placed.
I fail to see why would you trust the ratings of the mob? Or an individual for that matter?
If someone goes on a bad date, it's a two-way street. Additionally, for one person, a date with a super Star Wars fan is boring, for another, it would be a dream one. Yet the reviewer might not recognize or disclose what made the date bad for them.
You would nearly have to give as much time to exploring the reviewer and their validity as you would spend on the initial contact with the person being reviewed when you meet them and examine them yourself.
I think we already have a lot of similar services for reviewing others, but divided into more precise aspects of our personalities. LinkedIn for our business endevaours, Uber or AirBnb ratings for shared economy services we provide, same goes for selling/buying things on sites like Ebay.
Doing it generally will just cause more fake politeness, more mental stress, and give more power to those willing to play the popularity game instead of focusing on producing propper results.
While the people who want to be labeled like this freely already utilize social media in this manner. Likes and comments.