This is why he was fired, please read the article, and check up on credit card privacy businesses need to adhere to. Google “PCI compliance”, etc. Server was wrong to post the receipt and was fired for posting it.
“The server posted the receipt online and that’s when things took another downward turn. Hickory Tavern confirmed to the Charlotte Observer they let the server go following this incident.
‘We … value the privacy of our patrons, and posting of credit card receipts violates our confidentiality policy,’ the said in a statement, explaining the reasoning for the server’s termination.”