The reality is that American Apparel sticking pubic hair on its mannequins probably won't increase lingerie sales, but will it give them publicity? Get people talking? Of course it will, it already has, as this post proves. People want to talk about this, out of shock, out of amusement, whatever the reason, emotion is evoked.
If so many people genuinely feel worried about the hairless state of affairs we've found ourselves in, why not do something about it? Imagine the time and money you could save, imagine the other things you could do instead of heading to the salon, and imagine how much better you might end up feeling about yourself.