From Black Unicorn:

If I say : "The moron who bought RJR Nabisco is a Nazi," I have refered to no specific person, but the meaning is clear. Similarly if I refer to the "dolt who posts as tom jones is a Nazi" I am liable. ...................................... This means that there are a lot of credulous people out there. I wonder what would happen if I was to say: "Santa Claus is coming to town." The consequences are predictable. Blanc