While it is understandable that you might be in pain, and really needing money due to unexpected bills, you still handled it extremely badly in your actions.
I'm pretty sure that ONE call or email to the OP detailing what was going on would have prevented all of this. A quick note saying "I'm going to put these up for sale, due to my health having a downturn, I still really appriciate you selling them to me... etc etc" would probably have made him understand.
Instead you chose to turn around and sell off the babies that weren't feeding(which was why you got them free - so YOU could get them to feed - unless I misunderstand), and further, put the adults that you got at a discount in order to help you have breeders up for sale at a profit. That all makes you look like a jobber who lied about why he wanted to get the animals in the first place.
When the thread was posted, you could have come in, and explained using the excuses of your health having a downturn, and etc etc. Apoligizing for reselling without contacting the OP about the animals he sold you to help you build a collection up would have been nice.
Instead, you immediately attacked everyone, declared that no one should have ever known, called names, and claim no wrongdoing. Now you have painted yourself a "bad guy" for your actions both in the sales/buys, and also in the dealing in the thread.
For my part, if it's listed at $50, then when I contact you to say "Hey I'd like one" and you change the price to $75, I'd decline and not buy from you. But if you have it at $75, and say $75 for shipping, that's your price, and I couldn't care less. If that snake is WORTH $150 to me, then I'd buy it. In this case, I'd politely decline, and go elsewhere to find a snake to buy. Just because the animal is what I would consider overpriced, does not mean TO ME that you would be ripping me off. Think of those silly stuffed flat dogs. Some people pay hundreds of dollars for them, while I'd give you a dollar each. It's what that item(or animal) is worth TO THE BUYER.
But, if you get them for free, on the basis of you getting them feeding, and tell the 'seller' that you sell them for $5 or $10.. THEN turn around and try to get $75 each for them(or $50 each) then it becomes a bit unethical. If you did get them feeding first, before advertising them, then good. If you did tell the 'seller' that you'd sell them for $75 each(or $50 each) then good. But you lied, in saying you sell them for $5 or $10 each, when you intended to sell them for much more, and didn't even get them feeding first.
I hope your health improves, and I hope also that you've learned from this thread a bit more about how to interact with others in the hobby. Otherwise, your business/hobby will continue to decline, until no one with any experiance in the hobby will do any business with you at all, including selling you animals.
Theresa Baker