Is it common courtesy for the buyer to provide more bitcoins after the fact if the value of the BTC has sharply dropped? I'm not talking about minor orders, meaning anything 200 dollars or less where the difference is probably negligible. I'm talking about orders of 500 dollars or more where a 20 percent decrease in BTC really changes the terms agreed upon. I've had vendors before ask me to make up the difference before, and I've had no problem with it. I'm just wondering about your opinions on it?
They make money when the Bitcoin value shoots up. That's the risk they take. Do you ask vendors to refund you when value increases during transit?