I have now accepted the answer at the, other question. When rejecting edits which go the wrong way, link to that question.
Overall, I have no plans of editing questions/answers to change the key notation. This settling is a guideline we can follow when accepting or rejecting suggested edits, and it's a way to avoid back-and-forth edits in this regard.
Please note, this is a proposal. I have no decision power. I'm just trying to settle this matter, because some edit proposals have been poping up to convert between the two, and we need to know whether to accept them or not.
2 or 3 weeks ago, I posted a question here asking "Should we use the kbd tag or not?".
It is time to settle the matter.
The voting was very important, and had it been a landslide there'd be nothing to discuss. But it seems somewhat close. The two most voted propositions, which I'll refer to as Yes (17) and Mostly Not (12), had a difference of 5 upvotes from a total of 29. I'm not a statistician, but I'm fairly confident that, with a pool as small as 29, a difference of 17% does not incur much confidence (in fact, see Dan's comment below).
Therefore, I find it important we take other factors into consideration.
Primarily, the majority of answers I've seen so far use backticks, not
<kbd> tag. This would seem to indicate most of our frequent
answerers prefer the backticks.
Obviously, they'd be the ones most affected by this. Imposing
something they find inconvenient1 (even if not enforced
tyrannically) is a bad idea.
Secondly, backticks are more concise to write and should be perfectly familiar to Emacs users.
Thus, I propose we adopt the Mostly Not option. Which says, in short:
Just use backticks, unless specifically referring to physical keyboard keys.
M-1is Alt+1 on your keyboard.
1: “They could just write their answers in Emacs“ is not an answer to this. People use Emacs in a bajillion different ways, don't expect anyone to use it the same way as you do.