IMO the perfect solution would be to rate only by saying "I like" or "I dislike". And then writing a review (to show how much you liked/disliked the product/movie etc...)
When you first get on the website, you're asked to rate a number of products. The more you rate, the more accurate the solution becomes.
When it can couple your test with users having the same test, you know see these users ratings in priority for new products. You can even ask them why they disliked/liked something if they didn't write a review. Because their opinion matters to you now.
When you first get on the website, you're asked to rate a number of products. The more you rate, the more accurate the solution becomes.
When it can couple your test with users having the same test, you know see these users ratings in priority for new products. You can even ask them why they disliked/liked something if they didn't write a review. Because their opinion matters to you now.