Like the two spaces after a sentence rule, the traditional quote style has much to do with typesetting. And so in the monospaced, limited font, early online set

Like the two spaces after a sentence rule, the traditional quote style has much to do with typesetting. And so in the monospaced, limited font, early online setting, those rules were not very relevant, and were often ignored. When it wasn't being overdiscussed. Waaay before Wikipedia. Now, the programmer style is actually different from these. You'll occasionally see a programmer write «He said "Foo.".»