This question is about the tag gm.general-mathematics. A meta question about it already occurred here, but was less specific (and didn't generate much discussion). See also the discussion in the comments of this answer to the question *"tags which encourage off-topic questions"*.

As a top-level tag, it is one of the of the arXiv math subjects. As an arXiv subject has a quite bad reputation, as it plays there some kind of trash role, e.g. to redirect unlikely proofs of fancy conjectures.

At MO I don't see the point to use it as a trash-tag, since we already have tag-removed to retag randomly tagged highly off-topic questions. And for questions that are correctly tagged but off-topic, keeping the tag is essentially harmless or even helpful (e.g., I don't see the point to remove "gr.group-theory" to a question of beginner level in group theory, even keeping it can accelerate closure).

Back to my point, my suggestion would be to use the tag gm.general-mathematics to questions where it literally applies, that is, whose field is not specific to any subfield of mathematics, but still includes some mathematical discussion (e.g., would apply to *"what is your favorite trick...?"* or *"examples of misleading widely use notation"*, rather than to *"Should I tell my adviser that I don't like my subject"* or *"Why does arXiv reject papers such that (...)"*). Thus would not be just a clone of soft-question. And I would find it quite useful in such a role, even if it will naturally have a ratio of off-topic questions higher than average.

What do you think?

Questions that are about research in math, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.) which I find useful and its current use is OK. I guess the role of gm.general-mathematics will remain a bit vague, but I especially want to exclude it as dedicated trash tag. $\endgroup$ – YCor Jun 19 '20 at 12:44mathematics questions which do not fall into a particular subfield of mathematics" could make a good tag excerpt. The current tag excerpt "Questions about mathematics which don't fall into the other arXiv categories. If you have a general question about mathematics but it is not research level, it's off-topic but it might be welcomed on Mathematics Stack Exchange" is quite bad, I think. Questions are usually redirected to MathSE because they're not of research level, not because they're about "general mathematics"; they are often focussed. $\endgroup$ – YCor Jun 19 '20 at 12:44