The reason I wrote my initial post, is that there is a better than 50/50 chance one of this lady’s friends defaced her sign. They would not likely know the correct way to draw the swastika.
They knew it would create a lot of publicity for her, and might garner her the sympathy vote, to prove how non-racist people really are.
In no small measure, this won Obama the presidency, Whites wanting to prove how non-racist they were.
I agree. However, they could look up a correct swastika on the Internet, just as devil-worshippers could look up the correct spelling of Satan.
Whoever did it, it was stupid people.