Given the answers received, if those question were asked today, they should be marked as star-wars-legends. So would it be worthwhile to have all the pre-decanonization questions marked as such?
If so, this will likely be a job for an automated script from Stack Exchange, rather than a user task (though possible), so I imagine part of this hinges on if SE wants to spend the time to do such a thing.
The tag wiki for star-wars-legends gives the following usage guidelines:
Use this tag if your question references Legends sources and/or to indicate that answers are permitted to use Legends sources.
(Note that I'm the user who added those usage guidelines to the wiki. I proposed/created the tag as well.)
We should follow the usage guidelines for all questions, regardless of when they were asked. However, it may be difficult to determine the asker's intent to include or exclude Legends for the question. Just because the question was asked before the introduction of the Legends brand doesn't necessarily mean the asker was looking for a Legends answer -- so we shouldn't add the tag to all questions asked before the introduction of the Legends brand. The tag should only be added if there is clear evidence that the asker intended to include Legends in the question or if the asker was willing to accept answers that use Legends source(s). We can safely add the tag to questions that exhibit one or more of the following:
Unfortunately, these criteria are too complicated for an automated script so we'll have to add the tag to the appropriate questions manually. Feel free to do so, but avoid editing too many questions at once (the edited questions should not take up more than about 5 of the top 15 questions on the front page).
