how about just letting them (people who have not registered) have access to say design or student area and homeworkers but then florist shop and letting off steam you have to register for(just so customers cant hear us moan). i dont mean so that just florist shop owners have access but only someone serious would register and then you dont mind them accessing as they may have something good to contribute. I also think people would contribute more if a location had to be added. I am wary sometimes of giving advice because of this.