It could be possible that certain paid reviews are fake because certain YouTubers might be getting paid to produce those fake reviews. This is why there is a lots of misleading information on the internet, including on platforms like youtube.
A lot of people,including me, have opted to rely on ptp reviews interms of determining the legitimacy of a site to earn from rather then believe what YouTubers say. That's because YouTubers tend to have fake reviews and comments. Most of the reviews and views for YouTubers are bought which obviously makes thier content questionable. Where do you find ways to earn online?