I think you meant to post this comment to someone else. None of the statements in the first part of your message rang a bell with me. I'm certainly not looking for cheap feeder snakes as my California Kingsnake is taking food nicely. I'm still too new to keeping reptiles to feel confident about my snakes, but they are eating well so far.
I agree that a rough green snake is not likely to be a good pet, but I disagree about their lack of educational value. I think there is value in professionals keeping a few museum or nature center type settings to teach young people about the diversity in the snake world. I wouldn't get a rough green snake out of its cage for kids to hold, but I'd want them to see the snake inside the cage and see how different kinds of snakes are made and how they live.
As much as most of us would like to see these green snakes rescued from a pet store that shouldn't be trying to sell this kind of snake, I also agree that it would be best not to buy one. If they pet store sells the ones they have, they'll see it as a success. It's better if they just can't move these snakes and decide against trying to sell any more of them.
Bill