"Particularly as the news articles I've seen, action does get taken"
It seems like only yesterday you were claiming that you had no knowledge of these signs CS!!! Make up your mind lad (or lass).

I commented in the other thread I'd never seen one of these "widespread" and "common" signs. Which was true. After Googling for images of such signs, I commented on this thread that I found five different image captures of such signs on the web. The five different images I found came from news stories ranging from 2003 to January of this year (ie" approximately a decade). From memory of the news stories I found about such signs, one Landlord was fired over putting up such a sign. Another sign put up in an Ice Rink was reported on and removed after five days.