There is a difference between a valid packaging and handling cost and hiking up the cost of delivery so as to pay less in FVFs.

I absolutely agree that if a seller has just stuffed an item into a satchel, envelope or whatever and scribbles the name and address on charging any more than 50c would deserve stars marked well down.

If the item is carefully/safely packaged in clean, new packaging materials and the seller has obviously spent some time preparing the item for delivery then I don't have a problem with a p&h charge of up to about five bucks depending on the degree of difficulty.

Any more than that and I would again be marking stars well down.