Currently, there are 8 questions that are tagged untagged.
Those 8 can easily be edited to no longer include the tag untagged, but I would argue that it should be destroyed altogether. I am having a hard time imaging a question that I couldn't find a single tag for in our 4 pages of tags, but would still be an on topic question for this site.
What is the consensus on this? Are there valid cases for the untagged tag?