I think we're having a rural/city dweller divide. I wouldn't consider anyone even a small grower unless they make their main living doing it but lots of people sell a few things to make ends meet.
I was mostly curious if mark_l_watson meant to include people growing for their own table or not. The expected impact on people growing to sell small amounts is also interesting. Figuring out what we each would have called the various possible delineations prior to the discussion is not very interesting.
(I would think the big impacts would be things like requiring people to disclose that they were reselling something, which I see as a positive for the buyer, without being particularly onerous)
