Hi!

>>> - org-loop-over-headlines-in-active-region => t
>>
>> I vote for => 'start-level.  Loop over headlines with same level as the
>> first.
>
> Yes, good suggestion.

Let's see what others say.

>>> - org-special-ctrl-k => t
>>>
>>>   The default value for the sister option org-special-ctrl-a is set to
>>>   reversed and while this changes a fundamental Emacs command behavior
>>>   it feels useful.  I'd argue this is the same for org-special-ctrl-k:
>>>   setting it to t will feel natural.
>>
>> AFAICS there is a contradiction between the documentation of
>> org-special-ctrl-k and the code!  Doc: kill the tags.  Code:
>> (org-align-tags).
>>
>> Further I propose to delete the part " and possible the folded subtree
>> below the line" from the documentation.
>
> Can you propose a patch against the maint branch for the fixes above?

Sure.  See the attachments.

>>> - org-src-tab-acts-natively => t
>>> - org-allow-promoting-top-level-subtree => t
>>
>> Just an idea for the "reverse": provide a function to convert a comment
>> line to a heading (one level below the current level) and demote the
>> subtrees below.
>
> I don't think converting a comment to a headline is a common use case.

Ok.  That was just an idea.

>>>   * We have regular meetings with https://www.emacs-doctor.com/
>>
>> What are these meetings?
>
> We gather with fellow Emacsers in Paris once in a while.

Ahhh!  Paris!  Thanks for the information.  Paris is out of my reach, though.