This is my first Meta question if there's any problem do let me know and I'll try to fix it ASAP.
This is an issue I have encountered in my recent questions as well as others'. The "issue" — which might not be an issue at all depending on how the community sees it — in question is: a question with a certain scope is posted, but some of the answers provided ignore said scope in order to either circumvent the problem to find an easier (or more plausible) solution or in search of Problem XY.
To clarify, I'm not talking about lateral thinking, which would be an answer that makes assumptions not specified in the question in order to provide a better or more suitable solution.
Nor I am talking about the regular cases of challenging questions' premises, which I think are constructive since they provide good answers that might not have been considered otherwise. Such as this answer to one of my questions.
I am talking the intersection between challenging premises and ignoring scopes. Such as when asking a science-based question but answering with magical solutions. Or for example, in this question about 2d organisms in which even though it is explicitly stated that the point of the question is to ponder about the scope of the 2d tag, one of the answers goes looking for an XY problem that doesn't exist resulting in an answer that falls out of the scope of the question.
As for my actual question, what should we assume is static or set in stone when asking a question? should tags be considered definitive and unquestionable when assessing how to answer a question? or should that role fall on explicit statements in the body of the question? maybe both? or should users be allowed to freely determine whether the scope of a question is faulty? if such is the case, what stops users from answering about the proper use of feng-shui when the question asks how to use a sledgehammer?
Alternatively, maybe this is a non-issue and I am just being whiny.