When my friend's mother opened her restaurant in Koreatown, they received, amongst other welcome-to-the-neighborhoods: phantom Yelp reviews (describing tickets

When my friend's mother opened her restaurant in Koreatown, they received, amongst other welcome-to-the-neighborhoods: phantom Yelp reviews (describing tickets and events that never occurred) and a string of big table reservations (no shows). One such "review" complaining about a rat infestation was written by a then Yelp Elite member rather than an obvious sockpuppet. Who can you trust when even trust is gamed?