On the one hand an offer is an offer.
When you state in the for sale post, "No Paypal", "U.S Postal money order only", "no Trades at this time"
Any cash/USPMO offer is a valid offer.
I have been offered 10% of what I have asked for a knife, it is a Valid offer, stay polite and return the Favor.
Say, "Not at this time, but I would like to keep your offer in mind for possible consideration at a later date."
I will take less money from people I like and not sell to some people even at 150% full price.
But opinions vary.
When you state in the for sale post, "No Paypal", "U.S Postal money order only", "no Trades at this time"
Any cash/USPMO offer is a valid offer.
I have been offered 10% of what I have asked for a knife, it is a Valid offer, stay polite and return the Favor.
Say, "Not at this time, but I would like to keep your offer in mind for possible consideration at a later date."
I will take less money from people I like and not sell to some people even at 150% full price.
But opinions vary.