There are really people who prefer putting profit on top of everything than thinking of other's welfare. It is their main goal to make a profit rather than to spread legit reliable information.
Most people are like this sadly thanks to the money factor. One big example in this forum is the 1xbit fiasco where a shit-ton of shills are involved who promote that scam site just for quick bucks.
Review site is important because it make me no need to check one by one site.
Such review sites are pointless if the information that they are sharing isn't 100% accurate.