Now as for why I do this? This book creates such a wild reaction in people that it's an effective tool for sorting out radicals, purity commissars, and generally annoying people. And it works.
I don't actually care about the book. I don't understand why people care about the book. I care about keeping pains in the ass out of my life. And, let's be honest here, the feeling is clearly mutual with some of these people.
And people here clutching at pearls over a white lie?
People find ways to self select with all sorts of methods. Mine doesn't involve immutable characteristics, and I prefer it that way.