Speaking as a self-taught programmer since I was in my early teens: I have nothing against it, some of my coworkers are bootcamp grads and I make sure they know I am available to help them. I also pull them aside to show some tricks or things to pay attention to.
Who is the lifelong programmer that dislikes showing others what they know about their favorite thing? Not me.
Who is the lifelong programmer that dislikes showing others what they know about their favorite thing? Not me.