This sign always has the opposite desired effect on me. If I see a sign trading for 5-Star reviews, there isn’t any way for me to tell which reviews were written for a free burrito. So I immediately discredit all 5-star reviews the restaurant receives.
I do this anyway, I just don't trust rating systems so tend to remove the top and bottom marks.
Obv not a perfect solution and unfair to those who aren't gaming but over the top 5 star and bitchy one star reviews even when genuine aren't always that representative.
