Why I'm not adding a sub to my 2-way monitors for music

Thank you, Erik. I have subs now, but I'm not against selling them if this is equally good. 

I hear you, Erik. What I meant to say was that I'm learning that the initial way of going as an audiophile is toward "more" but you're explaining how "less" can be "more," and I want to be open to that.

I've re-read the OP and the two articles directly relevant; the one mentioned in the OP and the one before it, "How not to buy a subwoofer."

Erik makes it pretty clear this is mainly about his process and how he came to his conclusions. A bunch of posts here are manning the ramparts to go against the claim that "no one should ever have a sub, their personal freedom be damned." I know folks need a cause to fight for, but...

Re: the DBA, Erik discussed it and didn't dismiss it, here: https://speakermakersjourney.blogspot.com/2020/04/how-to-not-buy-subwoofer.html

While I was a fan of this [DBA] idea due to the innovation and possibilities it offered I never really warmed to it due to the physical complexity.  For me, I want my system simpler, smaller, and tripling the number of speakers in my home has no appeal at all.

So, as I take this in, I see Erik making the point that if one wants to avoid the complexity of the DBA, one needs to be careful about whether a sub is genuinely needed, and how to assess that complicated question. He's not taking the work off of anyone's shoulder's; rather, he's making the unpopular point that making a correct judgement about this requires work and he's aiming to assist any audiophile not content to just buy more stuff.