Reviews do not simply need to be reviews. The same or similar comment can be made on the [hive] post, as well, if the post has a comment section. The biggest point of reviews is the ability to leave a comment on CTPX content that does NOT have a comment ability built into the presented content, such as a referral link type content. Not all content presented in CTPX, by design, comes from hive and, therefore, the review system provides a way to leave a comment about this content.