Well, so what are the existing rules about puppy farms and multiple home breedings? As a member of the public who likes dogs but isn't into breeding or showing, I wouldn't know if someone was operating illegally - unless there were clear and evident welfare problems - and so wouldn't be reporting anyone.
So I do think there is mileage in moleskins' awareness campaign idea. But it needs to be aimed at me and people like me who do not breed and do not show, and not couched in language that only those who do breed and do show can comprehend.
It also needs clear and simple guidance to all the welfare charities, community police and dog wardens, expresed in their language, so that they are able to decide what they shoiuld do if something is reported to them. I'm guessing that at the moment, they'd be faced with having to do a bit of legwork to get to grips with what may constitute an offence and what they could and should do about it. Hence (one of the reasons, anyway) that any such reports are often filed and not acted upon.