Disambiguate the [doomsday] tag

Question

Earlier I spotted the doomsday tag and the broad range of things it's used to mean:

• Doomsday, the second season finale of the Doctor Who reboot in Doomsday - How Does Pete Know
• doomsday, the end of the world, in What is the extent and nature of Nix's power in (the film) Lord of Illusions?
• Doomsday, the DC Comics character and antagonist of Superman in If Doomsday was so powerful, why couldn't he get out of his restraints?

Obviously, these are all perfectly valid claims for the tag, but the wide range of uses also makes it far too broad to put under a single tag.

What should we do with these questions and the tag to make it more useful?

Answer 1

As per Moogle's comment, I think the tag doesn't belong on the Doctor Who question, since we normally wouldn't tag each and every episode of a TV series. So I removed it.

In the question about Nix's power, the tag is only tangentially related. So I removed it. The concept of a doomsday, the end of the world, can be covered be other concepts as well. I think that (if we ever actually need one) end-of-the-world or something similar would cover it better, without being tied to s specific term.

So that leaves the character Doomsday. While there's only one question about Doomsday tagged as such, a simple search showed more examples. So those could be tagged doomsday, and if we keep the tag, I feel it should be about the character.