So maybe by reading the review, they will know where they can play gambling and will not have to worry about the scam that can come to them.
Reading reviews is good but we also need to make sure that the reviews are legit because there are many fake/paid reviews to make bad casino looks good as well as many fake reviews to make a reputable casino looks bad. There are still many people who are fooled by fake/paid reviews that makes them choose the wrong casino to play. My best way to choose a casino is to find information in this forum or by asking friend who I trust. Having friends who like to gamble is an advantage for this case, as they can help help us to choose which casino to play because they have their own references based on their own experiences.
At least, you can read reviews from here as we see many members share their experience playing on various gambling sites. By doing that, I am sure you can prevent the scam gambling sites that want to steal your money because of their shady policy.
But if that is about reading the reviews from other sources, I am just not sure about that and as you said, that could be fake reviews that want to attract more people to play on their site. That will be a danger since we do not know anything about the site and only follow the reviews.