marketplace reviews are biased
SA only allows for current subscribers to review marketplace services. I was a member of the disastrous Beating the Market until November (I was put off by how they disregarded inflation's threat to their unprofitable high-growth portfolio, and their arrogance in dismissing my and others arguments to this effect in the chat).
Several times since then I've tried to post a thoughtful review, but SA doesn't allow. BTM has many unhappy customers who left, who can't post a review because they cancelled.
Obviously, this is a kind of survivorship bias that explains the service's impossibly high average rating.
Can somebody explain why any of the reviews are reliable if they are only reviews posted simultaneous with membership. Why can't somebody cancel a service, then write a review?