There are around 60 questions that contain
makebst, but no corresponding tag. Should we create one?
(Making this an answer, since it seems to have enough support.)
We already have a custom-bib tag, so really all that is needed is to make makebst a synonym, and perhaps add the custom-bib tag to some of the questions that are missing it. Oddly I don't have enough reputation in the tag to even suggest a synonym (SE works in mysterious ways...) but certainly a moderator could do that.
Just be aware before going on a tagging spree, that adding a tag to a question bumps it to the front page, so it's best to do tagging in small sets over a few days if there are many questions in need of new tags.