In addition, reviews are a prime example of sub-optimal communication by us. A lot of people don't write reviews for others but for themselves and thus, many of them are just unhelpful to me.

"Great restaurant, food was lovely. price is OK!" - Well, what was great about the restaurant. What is an "OK" price? Is it 5€ or 30€? You didn't probably order the entire menu, so what did you order? What did you like about your order?