Ya I left the legal arguments out of it because they are not really appropriate for this forum conversation. I was more speaking from a moral argument, as in "how can the operator of the business/site ensure that the royalties are paid to the proper person." And what happens if two people submit the same recipe? Is the operator going to investigate who is the "creator" of the recipe? And in Yooper's case, she said "I don't want to participate" so wouldn't it be morally wrong to use her information? Is he going to sell her recipe at a discount because there is no cost of royalty?
I think these types of questions are likely the reason that his kick starter campaign didn't make it, just too many questions. Though from what I read he said that if a recipe's origins were in question the recipe could be flagged. But as people have pointed out, no recipe is an original, we all got them or the ideas from somewhere. So most of us just take a proven recipe and make small tweaks anyways.
But I think we don't have to worry about this idea panning out into a business. I feel like kits mostly only appeal to newer brewers, and it's unlikely they'll know who the hell these supposedly famous hbt-ers are to even want to try their kit.