It's interesting.
I can't stand reading about startups, advice, etc. I regularly watch my friends, people on HN or Reddit fall into the folly of discussing different strategies or trying to create the "perfect team" or "perfect business" prior to launch.
I create products regularly, and many of them make a profit (not a ton yet, but all growing). My consumer facing apps include https://easy-a.net/ or https://projectpiglet.com/ both are (clearly) boot strapped together, but I launched as soon as I had anything resembling a product. What I will caution is that I did wait to launch the products until they were stable and easy enough to use. Sure, they don't look pretty, but it works.
I think advice (blogs or otherwise) are one of the largest hurdles an entrepreneur has to over come. Starting a business isn't about other people, it's about yourself and your business. Even going through things like YC's Startup School can be a detriment, because they fixate so heavily on various components of the business. Often, you just have to tune it out and do what's right. In this case, that's building something, speaking to customers, and improving.
Ironically, I think even this article is the same rehash of the 30 other stories I've seen (assuming the quote you took is from the article, as I didn't read it).
That being said, I do see value in interaction. Which is why I post comments like these on HN or discuss an idea. It's generated tons of leads and that is much more valuable.