We killed off this tag some time ago - I noticed it in use during the current cleanup, and it has been used 360 times since then (at least). I suppose that there's a perfectly good reason, other than folk not knowing how to read, but this is still annoying.
How do we ensure that the tags arn't necromancised? Do we have a master list of killed off tags and periodically reclear them, or would blacklisting them be an option?