I my experience, public reviews encourage dog piling and bias. When I uploaded my game on Newgrounds where reviews are public, there is a system where newly uploaded games and movies are "under judgement" where everything is hidden (ratings, reviews) until the game reached like 50 votes. My game passed with a decent rating (3/5) perhaps because people used their own personal judgement. But then right after a negative review shows up complaining about random things, suddenly a bunch more negative reviews started to pile in and as people enter my game page, all they see are negative reviews so they too, left negative ratings until my game was reduced to 2.0 at 150 votes and almost got kicked off the platform.
Also no I'm not saying what game, not gonna let you guys come over and finish me off.