I, and others, don't agree with the blanket statement that "no estimates" is not a legitimate argument in any scenario. Can you expand on why you think there isn't a single case where estimates don't add value? Similarly, is there anything specifically in that post's claims that you think was incorrect, leading to their false conclusion?
Okay, a scenario where you're building a hobby project alone and you don't care if or when it gets finished would be one where estimates aren't needed.
There is no scenario where it's appropriate or necessary when developing software professionally or even as a side project where others are expecting you to complete work at some point.
One of the many misconceptions in the original comment in this thread is that "worthwhile software is usually novel", which is not the case without a very specific and novel definition of worthwhile that I don't believe was intended.