Old news, but 5 years ago, a teen employee at a Burger King in Ohio posted this picture of himself on a 4Chan bulletin board. He thought he was doing it anonymously. It only took fifteen minutes for users there to be on the phone to Burger King, and, in the aftermath, three people, including the teen, were fired. News organizations are lax about divulging who was involved, even though criminal charges could have been filed.
The point is that HanAssholeSolo should have known that he was never anonymous.
Burger King, to it's credit, immediately took action, including firing three employees that were involved in the incident.