If your user name appeared to be a real first and last name (fictitious or not), your user name has been changed to just your first name. As of May 1, 2018 no full real names are allowed as user names.
Depends on the area. I eat out a lot in New York City, and they have to meet certain requirements in order to stay open. They usually have a letter grade posted on their window, so I usually go to restaurants with an A.