I don't disagree. I've made mistakes too, but when facts are put in front of me I learn.
I don't know much about turtles, but a quick Google search combined with the info shared on this thread would steer me in the right direction.
I have no problem with trying to help the turtle, I'm all for it. But when the evidence showed that I was wrong I would swallow my pride and do the right thing.
I truly believe OP was trying to do what's best for the turtle. But just slamming the door shut on knowledgable people proves that it's not all about the animal.