It affects one gender a lot more than the other.
Though strangely enough a friend of mine was told off by security for taking off her heels while sitting down (they hurt a bit) but at the same time ignoring the boobs girl altogether lol.
Berlin is even (way) crazier by the way. Though I'm not sure how they would deal with this in public there, Germans can be a bit more formal in that sense :)
Interesting, I didn't know about that movement.