It's definitely not limited to the U.S. though. I recently got this email from a new irate user of my side project, trying to use an international card that Squ

It's definitely not limited to the U.S. though. I recently got this email from a new irate user of my side project, trying to use an international card that Square wouldn't accept: > HELP URGENT > TRYING TO ADD A CREDIT CARD BUT YOUR STUPID WEBSITE ARENT ACCEPTING MY CREDIT CARD. They still had 13 days to enter a credit card, so this wasn't exactly "urgent". I think it's that people want to convey how frustrated they are so that you'll prioritize the issue, and it comes across as aggression. What I've learned from being on the other end is that this approach sometimes backfires. I feel a strong urge to put off responding to such rants because it's draining to deal with these customers, while customers who respond positively to help or advice make a sole proprietor want to help them more.