I agree. Call me crazy, but it just seems intuitive that the title "I learned to code to launch my new startup" should be about, ummm, learning to code.
I also think that the blog post would have been much more pertinent to the OP's experiences and conducive to good feedback. Conceivably he chose the title because he wanted feedback on his experiences while learning to code, yet he got feedback about the product in general. If he was looking for advice about the site in general, a Show HN would have been more appropriate.