A seemingly innocuous question from a trusted source, “What TV show or channel can’t you live without”, is enough for people to reveal their name and email address via Facebook. What they probably didn’t realize is that their email address name and even part of their profile (picture and associated caption) would be revealed for anyone to see.
This information is on a public page for anyone (Facebook Login not required) to see. The telephone company probably didn’t realize that this information would be exposed. Ironically, this author noticed the link to this page via a Tweet from the telephone company.