For me, the biggest issue I have is book ratings on Amazon.

Besides companies - and small time authors - paying for good ratings, you have a similar amount of people that genuinely bought the book, giving 1 start ratings because of whatever quality of the book manufacture, be it physical or digital.

One of these two alone would not be difficult to manage, but having to deal the two makes it almost unbearable to find out the proper rating. We should start giving ratings ratings.