The dev deserved to be treated kindly, by default. But by being unkind himself, he surrendered that privilege. So now he won't and shouldn't get what he asked

The dev deserved to be treated kindly, by default. But by being unkind himself, he surrendered that privilege. So now he won't and shouldn't get what he asked for. I don't understand how an adult human could fail to understand this. Asking a favor while simultaneously being a jerk is not likely to work.