Recently I get a lot of 2-year or older posts in Close Votes review queue. We all saw those legacy questions which would be closed in 10 seconds and get downvotes nowadays (primarily opinion-based or too broad). While I do understand that most obvious answer is to follow the rules, I can't help but assume that rules were different before and so I wouldn't want to ban something which was not against the rules at the time it has been posted. Really, would the rules be like they are now if not for those legacy posts to support the historical value of SO?
Additionally, I assume that if a question has 50+ upvotes, it is valuable and supported by the community. Lots of questions in my favourites list wouldn't survive today, but are favourited by many people. Should such questions be protected from closure/deletion? What are the guidelines for reviewers on such questions?
My reasoning is that closing procedure is supposed to get rid of questions which are unlikely to generate helpful answers:
they are unclear, too broad, or otherwise problematic to identifying the problem in a way that can be properly addressed by answerers
But those questions already have good answers. I just don't see how closing (let alone deleting) them would improve SO. "On hold" status is completely useless in such case because the author is definitely not coming back to edit years old question and why would that even be useful? Again, the answers are already there...
Looking forward to hear your opinions.