So if you had a knife sent from outside the US you would be totally happy for that person to have the full burden of responsibility lie with you ?
Simply the chance of lost package would be my reason. However, if someone like you came along, I would sell to you since you absolve me of responsibility. USPS is less reliable than they should be and hard to track once out of the country.
That said, I like aussies. I guess I feel a kinship since we all used to be POME's lol. If you need help getting something, feel free to PM. You cover it and I'll help get it to you free of charge.