I've edited in a 'meta-comment' into this question, which was rolled back by a moderator:
Note: answer accepted for sake of closing the question, though parts remain unanswered, and will be explored in followup(s): Q1
Comment's self-explanatory: the accepted answer is not fully satisfactory to the question's intent. I proceeded to make followups, effectively 'breaking up' the question in parts, to keep the format SE-friendly. This is, however, an important caveat for the reader of the Q&A to be informed of. Without meta-commentary, the question's author must ask the answerer to edit in this piece of information - which is an overhead complication, and not guaranteed to work.
"Ask a more focused question" - I did, or at least I thought I did; if physics has a recurring theme, it's that answers may beg more questions. If I were the reader of the linked Q&A, I'd be completely unsatisfied - and a directly linked followup would be the most effective means of filling the gaps.
Clarification per requests:
- It's not accepted - I unaccepted it after a moderator unrolled my edit
- Why accept if not suitable? - Answer is 'sufficient' given scope focus requirements of an SE question, yet incomplete if moving aside any 'regulations'
- Why "for sake of closing"? - To 'move on' to more suitable followups; this one wasn't likely to progress further.
Edit: maybe it's inobvious, but as-is, not all metacommentary is censored; this question references and comments about multiple other Q&A's, and so do many others. My request thus isn't to nullify a rule, but to merely expand its scope.
Why "for sake of closing"? - To 'move on' to more suitable followups
-- then don't use the word 'close'. The term has a very specific meaning here, and using it to refer to other things simply invites confusion. Subtle edits to the language (say, 'conclude this discussion') to avoid this terminology conflict would help prevent discussions about precisely what you meant. $\endgroup$