As noted in this four-year-old question, the grammar tag (and also its misspelt cousin, grammer, which I implicitly include here) is the fourth most used tag on ELU, and it seems to be overwhelmingly misused as a generic tag by new users who don’t understand how tagging works and just put in ‘grammar’ no matter what the question is about.
As noted in this slightly-less-than-four-year-old question, that basically makes the tag completely useless. Nohat’s answer in the first question makes a useful distinction:
- grammaticality is appropriate for questions about whether something is grammatical or not
- grammar is appropriate for more abstract questions about how various grammatical structures are defined and named, or how they function or differ from each other
There are, I suppose, a fair amount of questions that could meaningfully be put into the latter category; but the vast majority of questions currently tagged grammar are either in the former category or belong to some completely different category.
JSBձոգչ’s question seems to have been quite positively received, but nothing appears to have come from it. My suggestion on how to help fix this tag abuse is a bit different from his, though:
Hopefully if new users see no tag simply titled grammar, they will try to find something a bit more descriptive.