Worth mentioning is Yelp's long (alleged) history of using review filtering as a de facto racket to 'encourage' businesses to sign up for their paid services.
A company I used to freelance for found that after they stopped paying Yelp for a premium account, they started seeing more negative reviews and a number of their positive reviews were filtered out. They got almost daily phone calls from Yelp marketing types essentially suggesting that if they renewed their subscription, the negative reviews would 'disappear'.
This was a few years ago, so maybe things have changed since then. Either way, I wouldn't hold your breath for a better review verification system.
A company I used to freelance for found that after they stopped paying Yelp for a premium account, they started seeing more negative reviews and a number of their positive reviews were filtered out. They got almost daily phone calls from Yelp marketing types essentially suggesting that if they renewed their subscription, the negative reviews would 'disappear'.
This was a few years ago, so maybe things have changed since then. Either way, I wouldn't hold your breath for a better review verification system.