We have a tag classic-sci-fi, which has no wiki.
At first sight, one would assume that the tag is for works deemed to be classics. For example the works of Jules Verne or H.G.Wells.
The tag has been applied to 11 questions, none of which are any more "classic" than any other question on this site.
Ten of the 11 also carry story-identification and, for these, the classic tag seems irrelevant.
The eleventh is about Soylent Green, the classic status of which is open to debate.
Should we clean up the tag? Create a defining wiki?
At present the tag appears to be confusing.
Edit: The tag has now been removed from all questions. Can it be deleted?