Has anyone ever broached the idea of putting tags on answers in addition to questions? There are a lot of questions that don't have accurate tags since the OP doesn't know what series/TV show/comic book they're looking for.
If we could tag answers as well, it would make it far easier to find content. For example, many questions have an "Amazing Stories" episode as the answer, but that fact isn't reflected in the question tags, or even the question itself (since it's unknown at that time).
From a purely usability standpoint, it would be nice if clicking a tag called "Amazing-Stories" showed you not only all questions tagged that way, but also any questions where an answer is tagged that way.
Note: Using "Amazing Stories" as an example, I see them fairly often. Here's two I came across just today:
Both questions are currently tagged with just "story-identification".