On the contrary, I think it is quite normal to leave a positive review when you've had a good time at a restaurant. When I look for restaurants, I certainly rea

On the contrary, I think it is quite normal to leave a positive review when you've had a good time at a restaurant. When I look for restaurants, I certainly read both positive and negative reviews. You make this almost binary by using food poisoning as your metaphor (either you get it or you don't), but normally there is a much more nuanced range of experiences.