Surely some of the 30 million Americans that use cannabis recreationally or medicinally would use hemp. It is likely that people that those that use cannabis are more informed about the greatness of hemp as food, but that does not mean outlets like this forum at CureZone are reaching a new audience and helping everyone catch up.
Hemp has historically been used for food, clothing, shelter, and lighting oil and the drug warriors all but wiped out the historical uses of hemp. Thank goodness for Jack Herer and his book "The Emperor Wears No Clothes"- http://www.jackherer.com/