Another site which comes to mind is http://www.imdb.com/ which seems to suffer from a veritable plethora of fake one shot 10 out of 10 reviews.
When I commented on the inconsistency, my comment was deleted and marked as "Inappropriate Content" as if I had been abusive.
So which review sites are reasonable, how can you make use of them and what are review sites doing to clean up their act. Are gradated reviews better where, various qualities are separated out and each rated (especially contradictory qualities) so at least to slow down fake reviews"
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