When reviewing suggested edits I came across this edit. I noticed that this edit was for a question from 2011. I was unsure whether I should approve this edit, which was just to add some relevant tags. I see that the edit should be approved because it's an edit that follow the edit guidelines, and yet I didn't want to approve a question from 2011 which already had a correct answer, because it would bump it to the homepage
My question is whether or not I should approve edits to old questions, answered or unanswered.