I appreciate your pragmatic view, and you may very well be completely correct. At bare minimum, you're certainly answering the question for the next person that comes in and reads the forum by searching.
To play devil's advocate to your devil's advocate and to play with your metaphor a bit, my reading of his posts leaves the impression that he isn't saying "Hey, what's it take to be a race car driver?" but instead "Hey, what's it take to teach race car drivers? I want to do it as quickly as possible while minimizing spending time on that pesky race track."
That could be nothing but a communication error, but that's the impression I believe many of us have been left with based on his posts.
"I want to teach people to drive race cars. What is the cheapest and quickest way to do that?"
You can interpret that as "I want to teach race car driving. I don't care how good I am at it. What is the quickest and cheapest way to get there?
Or you can interpret that as "I want to teach race car driving. I want to be good at it and produce students that are good race car drivers. How can I achieve that goal in the way that is most efficient in terms of my time and money? I want to do it right, but I don't want to waste my time or money on things that are not helpful towards that goal."
Which way you interpret the initial question is on YOU, not the person asking.
If you read ALL of the initial post, including the parts about what things to read in advance, you MIGHT be willing to give the OP the benefit of the doubt, as I did, and interpret his question in the latter way.
That being said, do you think you would have anything of value to teach an aspiring race car driver?
I think I would if I took the best path to becoming an instructor. I expect it would involve spending a lot of time racing cars first, and then a lot of time working with/for a really good race car driver instructor, to learn how best to teach it.
And if I WANTED to teach race car driving (and let's assume I had already been teaching Driver's Ed in a local school for 10 years), and I went on a car driving forum and asked the fastest and cheapest way to achieve that goal, I would HOPE that I would not (as @EastEndDiver put it) get kicked in the balls for not already knowing the answers to my questions.
I think it's pretty simple. I TRY (albeit, not always successfully) to treat people the way I want to be treated. If I ask a person or a group a question, I would HOPE to be treated as if I am presumed to be a good and sincere person and if my question sounds stupid or ignorant or like I could be trying to take shortcuts, that it is probably because I simply don't know what I don't know and not that I am not willing to do things "the right way" once I learn what "the right way" is.
I tried to treat the OP, a stranger to me, the way I would want to be treated. I wish more people around here would do that.