See, that's the thing, though. There was no obligation on the part of a woman wearing a pin that says "Yes, you may ask" to actually let anyone touch her, if she didn't want them to. It just meant people could ask, and she then had the choice to refuse or consent, as she pleased. I think that's the point that most people missed. They were reading the pins as blanket consent to be groped by anyone with a yen to do so.