We should keep the tag, but edit its tag info/wiki to clarify which grammar questions are on-topic.
We currently allow some grammar questions here, but others have been migrated to English.SE, or simply closed as being off-topic. It seems inconsistent and is confusing to new users. Especially so if there is a tag that seems to confirm that grammar questions are on-topic here.
The help center currently says this about grammar questions:
On the other hand, these kinds of questions aren't allowed here: [...]
- The strictly interpreted correctness of English grammar or syntax rules (please ask those on English Language & Usage, instead).
Now compare this with the current tag info of grammar:
Questions about the rules of grammar, and how to properly apply them to writing.
So according to the tag info, questions about grammar are fine. The "properly" even indicates that questions about the "strictly interpreted correctness" of the grammar would be on-topic as well. (By the way, has this tag info or the wiki changed recently? I remember it being even more liberal.)
I suggest to change the excerpt to this:
Questions about the use of grammar in writing. In-depth questions about the grammar rules of a specific language are off-topic.
In the wiki, it could be clarified what this means exactly. This is my suggestion (but feel free to edit this if you think you can improve upon it):
This tag should be used for questions that deal with grammar in a writing context. As mentioned in the help center, questions about the strict interpretation of grammar rules of English (or of another language) are off-topic here, and should be asked on the appropriate Stack Exchange, such as English Language & Usage.
On-topic grammar questions for the Writing Stack Exchange are less concerned with the correct use of grammar, but more with the impact it has on the piece of writing. Examples are:
- Questions about breaking grammar rules, for example in an experimental novel.
- Questions about improving the flow of a narrative by using or avoiding certain grammar rules.
- Questions about the "feeling" of a certain grammatical phrase, i.e. what it evokes in the reader.
This means that for on-topic grammar questions, the context of your writing has to be relevant to the question.