I respect anyone who is willing to share their method.
But dude, did you really call someone "selfish" because he did not teach you how to make money? Don't you think that's too much to ask from a random good person online, who is neither your parent nor your mentor?
If they're willing to teach, we should be grateful. If not, there's nothing wrong about that, and should actually be expected. And don't forget they already show you the path.