Agree with mumsandsons.
I have sold with free postage and received less than 5 dsr for postage costs!!!!
I have sold heaps of items less than 1/2 the price of postage!!! no 5 star dsr
NO MORE.
I can send an item in my state for $7.45 but to the top end of Australia it is $11.30 this is without adding the cost of my packaging, tape, petrol costs etc.
I have been a buyer for years and only started selling but never complained about postage as I knew it was just not about the envelope and stamps.
I have just started to ship worldwide but if someone from USA wins the price would be different to a winner in China so I have to ask them to contact me for postage. Basically you need to judge for yourself and use common sense if you are not happy contact the seller or don't bid