There are marketers who do this with real quotes, sometimes by asking customers for a statement and permission to publish it. Those here look kind of unrealist

There are marketers who do this with real quotes, sometimes by asking customers for a statement and permission to publish it. Those here look kind of unrealistic since all reviews are worded thoughtfully, gave 5 stars, have similar length and no grammatical errors. Also, each user has a perfect portrait image as profile picture - this isn't even the case on LinkedIn...