In this question, the majority of voters opted for getting rid of the grammar tag, however there was nobody in favour of a retagging event. Instead, it was suggested that we retag slowly. So let’s do this:
Beginning now grammar should not be added to any new questions. The tag wiki is updated to reflect this. Most importantly, however, all 1303 existing questions with grammar have to be equipped with reasonable tags.
To this purpose, everybody is invited to go on moderate sprees to retag old questions tagged with grammar with the following considerations:
Do not blindly remove grammar and do nothing else. If we wanted this, we could make it happen automatically. Rather make sure to add all appropriate tags and remove further inappropriate tags. Of course, sometimes there is really nothing else to do except removing grammar, but take care that this is really the case.
As a rough guideline, throttle retagging such that one of the first five questions on the home page is a recent one.
Also retag closed questions. If the question was closed for a reason other than duplicate, consider one of the following:
If you think that there is nothing of value on that question or its answers, do not retag, but take steps towards its deletion: If you have 2000 reputation, vote to delete. If the question has no positively scored or accepted answer and a score of one, downvote it (which will trigger automatic deletion). Otherwise mention the question in chat.
Edit the question such that it can be reopened. Do not forget to cast a reopen vote.
Users without the edit privilege (1000 reputation) are also invited to participate.
If you are unsure how you should tag a question, mention it in chat. If you encounter general tagging issues, either mention them in chat or ask a Meta question about it.
This continues until there is no question left that is tagged grammar (maybe some odd exceptions). We can then proceed to burninate and blacklist the tag.
For now, I do not think we need a separate chatroom, but if you think that the main chat is overrun with posts regarding this, feel free to create one.