This tag was burninated as part of this discussion, and I've seen it come back a few times after that, including today. It may be a popular review request, but that doesn't mean it should keep coming back as a tag. Mentioning such concerns in the question body is already sufficient.
Yes. I've personally removed this tag at least once since the discussion you mention was marked status-completed. I'm sure I'm not the only one. There's no reason to keep burning it over and over. Blacklist it.
Sure. If we intended to delete the tag, and yet it keeps getting recreated, then blacklisting seems like the logical course of action.