Guidance from meta.se says close them.
I refer you to this question:
I think we can all agree that by Today's standards this question would be closed (with a couple of valid reasons to choose from).
However, things were different back then - well from what I can gather, I see quite a few questions like this from back in the day. This kind of question was clearly acceptable at one point.
So, should I vote to close it or leave it be? And just for extra understanding, what would happen to any rep for that question and the answers if it was closed?
View all question with today's standards. If the question fits as per current standards then leave it open; if it doesn't fit then vote/flag to close it. If we keep the questions which don't fit as per current standards, then people will ask why the questions are still open.
This sentiment is echoed several times across many posts at meta.se: