Google Maps explains how it tackles review bombing
 

Review bombing is a practice in which many people (or a few aggrieved folks with multiple accounts) barrage a product, business or service with negative reviews, usually in bad faith. That can severely damage a small or local business that relies on word of mouth. Google says millions of reviews are posted on Maps every day, and it has laid out some of the measures it employs to stamp out review bombing.


https://www.engadget.com/google-maps...2.html?src=rss