If you hover over where it says "Bugs", it changed to say "Boobs". Classy.
Have you heard of Amsterdam's red light district? It is a place where you can buy all sorts of narcotics, see prostitutes, and more! I am assuming that is what they're referring to. That is their culture. How dare you be so politically incorrect, do you have no notion of cultural relativism?
...one of our organizers is a brilliant female designer (boobs was her suggestion). I will also play my ex-pat card here and say this attitude is definitively british/american (it's honestly not necessary to be so prudish). What it takes to engage female collaborators is an openness to work together...and if you look at our nearly 2 year experience organizing Hackers & Designers you will find we are doing an above average job of doing this... ;-)