All of the quoted material below is very odd to me.
I'll address the questions, but first want to be clear on my intent. When I do something in this space (as I've done in many specialized forums (including a very popular one I co-owned in the '90s focused on Kurzweil keyboards) over the past 43 years since getting my Hayes modem for my Apple ][ in 1979) I will post about it. This post is in the "You" area, where social media information is presented. I did something with a modular rig, recorded it, and posted it. That is the intent of the "You" area, correct?

But in all seriousness, I don't understand the goal here
-- toodee

This is difficult for me to understand. The title of the post is "Putting a Mother 32 in a Behringer Eurorack rack" . That's what is subsequently shown. So the "goal" as expressed in the title is demonstrated as a unitary thing in the subsequent text and video. If there were another goal expressed, like "Putting a Mother 32 in a Behringer Eurorack rack and integrating it with a larger setup" then I certainly would have attempted to meet that goal, but that was not the expression.

Or is this supposed to be part of a larger setup, in which
case why is that information completely missing from here,

Again, that was not the intent. I often produce videos that are "modular", the address one single aspect, one bite-sized piece of information in a larger whole. Nothing was intended or implied to be comprehensive or part of a grander strategy or layout. It is, of course, and there will be a photo of the current studio rig below, but that's irrelevant to this post. This was and is about one thing that some might be interested in seeing prior to doing it themselves.
Where I do have wanted to show integration into a larger studio I would have titled the post something different.
And simply because some people on a forum are not interested in a topic is, of course, no reason to withhold a post, else most forums would be very bare indeed.

greatly reducing the interest for others users of this forum ?

And that is why a title is used. The title encapsulates the information to be provided. This (hopefully) prevents someone who may not be interested from wasting his or her time viewing the post. My intent is never, since it's generally impossible, to make a post that is interesting to every individual member of a forum. That is a Sisyphean task that I don't undertake.

Did someone really ask you offline ? If so, why did you chose >another communication channel to answer their question ?

Yes, on YouTube. I shared the response here since in my experience I've found that a question by one person is unasked but in the minds of at least 10 more, potentially in other locations. And since it was added to this thread (instead of creating a new one) then it was no more intrusive than the original, bounded, post.

I wish you would celebrate logical and critical thinking instead

But I am. My logical thinking is, again, "here's a thing someone might want to do, now they have [another] resource to review before doing so". And my critical thinking is "I don't want to bury this information in a broader video about an entire rig, so we'll isolate the key points".

What Lugia is trying to tell you or not trying to tell you >here, is that taking anything out of one powered case and >putting it in another case is pointless in terms of cost.
-- Baltus

I really don't understand this. No where in my post or in the video directly was there any mention of cost. Cost was and is irrelevant in this posting, I don't understand how "cost" could have been pulled out of anything posted.
My "point" was "Here's a thing people might want to do. I'm doing it. I'll post a video resource for a future person's potential reference". Had I said "and you'll save money" then certainly that's a point for discussion, but I did not.

And while this may be true (I don't know, since this person did not clarify their intent themself) the original post that I responded to did NOT contain that information, nor any other information, to determine what the intent was. That is a non-useful posting on any forum.

Anyway, this discussion is certainly interesting. And I will continue to post links to videos that might not be "complete" in a global holistic entire studio sense with every aspect of any installation detailed in great length every time I post. I do not believe that violates any Forum rules, though it may from time to time not be to the taste of specific readers.

And just for fun, here is the sub-rack that this unit is being integrated into, still needs a number of components that I am currently building, and posting videos of the builds that you'll also see links to posted here. Of course, this is just one of my racks, I hope not including the entire current state of my studio is not also received as a faux pas.

inprograck