Is the blank-page tag necessary? I realise that there are cases where code could result in a blank page, but since a) the tag doesn't have a tag wiki and I don't think there is a way to describe the tag in a way that isn't overly general (or useless), and b) the tags that it's associated with seem like they're somewhat all over the place (I hope my query is correct).
Should it just be left as is or removed? Do superfluous tags like this cause any harm by being left around? It isn't as low-usage as the tags the algorithm takes care of, but I'm still not convinced it has a benefit.