The 12k words can be written for many reasons. Publishing something as a final act of closure following a years-long emotional journey is certainly something I could understand and respect.

You claim that the author is being passive aggressive, but this is where I disagree the most. The author made no excuses or attempts to hide the mistakes he made. He also fully owns up to how he long he was obsessed with the monetary success of Minecraft, and how his jealousy had impacted him. You didn't have to infer or deduce these facts from the author - he laid them out clearly in the open and talked about how his anger has been misdirected the entire time.

I agree that your "abbreviated post" is a good concise summary of author's article, yet I object strongly that the details and stories he provided harmed the delivery; it very much amplified it. I think many people think of closure as some Buddhist monk shit where you transcend all human emotions. No, closures are about mustering enough security to air out your dirty laundry and accepting that it's going to look stupid / insane to most people.

This is his way of storytelling. This is his introspection. The poem in question was also long - too long for some people but it worked for others.