Meta is way more affected by time than the other sites. There are a lot of questions that are not useful anymore (example).
Should we close them as too localized?
It seems correct according to the definition:
This question would only be relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet.
We could let them undeleted for a sense of history, but I see no reason for them to remain opened.