(I am setting this up as a separate question to focus on this issue alone, without being mixed with other stuff.)
It has recently come to my attention that at least some moderators consider frame challenges in comments to be disallowed. As a site user for 2 years 9 months, this came as a complete surprise to me. If this is policy, it certainly was not communicated well or much enforced.
To eliminate ambiguity, what I am describing as a "frame challenge in a comment," is any comment saying that the scenario proposed by the question author, about which they are asking their question, is not feasible or would not quite happen as stated in the world proposed by the question author.
Relevant information:
Popularity
Everyone does this. For example, in response to a recent question, 7 different people offered frame challenges in comments. Judging by that, practically no one is aware that this is a rule.
The official comment guidelines
I was linked to https://worldbuilding.stackexchange.com/help/privileges/comment for policy information about what is allowed in a comment. This page says nothing about frame challenges. This is what it does say:
You should submit a comment if you want to:
- Request clarification from the author;
- Leave constructive criticism that guides the author in improving the post;
- Add relevant but minor or transient information to a post (e.g. a link to a related question, or an alert to the author that the question has been updated).
Comments are not recommended for any of the following:
- Suggesting corrections that don't fundamentally change the meaning of the post; instead, make or suggest an edit;
- Answering a question or providing an alternate solution to an existing answer; instead, post an actual answer (or edit to expand an existing one);
- Compliments which do not add new information ("+1, great answer!"); instead, upvote it and pay it forward;
- Criticisms which do not add anything constructive ("-1, see previous comments you scallywag!"); instead, downvote (and provide or upvote a better answer if appropriate);
- Secondary discussion or debating a controversial point; please use chat instead;
- Discussion of community behavior or site policies; please use meta instead.
I will refer to these points as "should-2" ("leave constructive criticism"), "shouldn't-5" ("secondary discussion"), etc.
Now, a frame challenge in a comment fits "should-2" (constructive criticism), as it prompts them to change their question either to revise the scenario they are asking about, or to add context to the question clarifying why the scenario is possible in their world. It seems positively prescribed by these rules; "yes, do that."
It is actually difficult for me to imagine any form of constructive criticism that would fit "should-2" and is not a frame challenge. Can anyone give a real example?
JBH's Primer of frame challenges
I was linked to this primer of frame challenges, apparently with the intent of justifying a prohibition of frame challenges in comments. However, in it, JBH talks about a frame challenge in an answer that should have been a comment, and was at that time indeed converted to a comment by moderators! JBH then says:
Finally, I propose this warning: frame challenges are not an excuse to abuse Stack Exchange's answering system. A frame challenge must be more useful than a comment or it must be posted as a comment (see previous paragraph about reviewing the answer). This warning is not meant to be anything more official than the community-approved existence of this paragraph.
By saying this JBH is explicitly saying that frame challenges that are not up to a certain standard of usefulness should be posted as comments! Again we have community guidance that frame challenges positively should be posted as comments. Let's call this the JBH-rule for later reference.
(A note: in the question JBH's thread links to, apart from the frame challenge that was converted from an answer to a comment, I count 3 other frame challenges in comments.)
"A frame challenge should be an answer, and whatever is an answer should not be a comment."
This argument is the only one I was given that makes any sense. It is supported by "shouldn't-2." However, a one- or two-sentence comment saying there's something inconsistent with the question author's scenario is not and should not be an answer. It does not reach the standard of usefulness of a full answer, and therefore, by the "JBH-rule," it should positively be posted as a comment.
So, why?
How widespread is this idea that frame challenges should not be posted in comments? Where did it originate? It was definitely not widespread in 2019, when JBH gave his proposal to put less-useful frame challenges in comments, and at that time the community approved. And if indeed the moderators are set on this being policy going forward, how can it be effectively communicated to users? (Does someone have privileges to edit the comment guideline page?)