Does Amazon maybe have too many ways to provide feedback?
This would be easier to explain face to face and I could point at the screen.
It's a comment, on a customer review of the book The Power of Positive Deviance.
I found the 1st comment (by Mobster 94) intriguing. The commenter gave the review a "was not helpful" vote and then left a reason to explain why. I've not seen that before. The reason surprised me too - the commenter thought the review was too long even though it was well written. Never seen that before.
So, here you've got 4 different types of feedback:
1) A review
2) A vote on whether the review is useful
3) A comment explaining why the commenter thought the review wasn't useful.
4) A comment from the reviewer suggesting that the commenter reads other people's reviews instead
And now, a 5th and 6th, which came from me clicking Yes, then No, on (3) and (4) above to Amazon's question "Do you think this post adds to the discussion?"