We have a rejection tag with 20-odd questions which for the most part seems to cover the typical scenario of a hiring manager rejecting a candidate for a job. But should this tag also include questions from the other side, i.e. a job candidate replying to the hiring manager to reject a job offer?
Sure, why not? Any rejection involves a rejector and a rejectee, so unless the concerns are so different that they demand separate tags, let's just use one.
We should create a tag when a category of question has its own cohesion (this grouping matters) and when it would be lost in the larger tag that would otherwise be used. It doesn't sound like we're there yet with this tag; if that changes later, we can retag some questions.