Usually nobody praises people for doing what they are supposed to do. That is why most reviews are bad.

Public schools and unis are usually far more legit. Why will you never see a review from the very best unis? Because they don’t hire teachers for a one year holiday and they don’t mess anybody around.

In fact that is where the reviews system arguably fails on every other ESL website. In what other kind of industry would anybody review the job that they have just left TripAdvisor style? Who ever feels happy after leaving a job that they like? Apart from professional athletes who sign up for megabucks deals, who the hell publicly announces renewing a contract?