I'd like to think that the part about launching and iterating -- getting your product out there rather than trying to make it perfect before launch -- is quite a useful tip for solo founders (and small teams). But, to each their own!
Having the blog provided both a vehicle to get the target market aware, and the credibility that the product is worth trying. It's really smart to be an active member of a community, and then provide services to the community. It's also very difficult, and takes a lot of effort. I think the post you responded to is someone who understands the amount of work you had to put into your blog to make it successful.
I don't think this is a negative, but a really good take away for new entrepreneurs.
- How will you market and sell your product? The "If you build it, they will come" tactic doesn't work.
- How do you know it's a problem people want solved?
- How do you know your solution adequately solves the problem ?
Your approach answered all these questions and you got to work on something you're passionate about.
Congrats on the success!
For example: on the app store you can launch your app/game in countries other than the US (australia, canada). Iterate, and once you're satisfied, than launch in the US.
Launching and iterate in the fully public eye of your customer base is a risky thing to do for your general brand value.