I suspect they take little notice. If you every worked retail, you know there is a small segment of nut cases that can never be pleased.Apple must hate forums like this!
When you become the most profitable company selling over one Billion of a product you must be doing most things right.
There is a valid reason Apple does NOT base product design on focus groups or consumer polls. It may be arrogant to some, but that "we know what is best attitude" has certainly resonated with vast majority of customers. To the point Apple is richer than most counties.