We are progressing towards a ban on a sub set of reviews. We can for example require evidence that one actually purchased a product or service and we may group those reviews by price. If I remember correctly EU websites already require evidence the reviews are left by real people. I didn't see anything about disposing of bad reviews.

I do think the way we read reviews can be unproductive. Say there is a cockroach in your soup. An independent investigator wont necessarily discover how it got there. Would you still want to eat there? What if I hire 3 people to put a cockroach in their own soup 3? Wouldn't that produce a strong signal to avoid my competitor?