Comment by alogray

I think the parent's worry deals with cases like we've seen with Google and other large companies where automated systems sometimes get inappropriately triggered and customer support is either ineffectual or non-existent until the user is able to make a viral stink on social media (think malicious/bad copyright flags on youtube causing channels to get demonetized). With reviews, the restaurant theoretically at least has a reasonable deal of influence in most cases.