"Leave them until they're outdated" isn't a valid way to deal with issues in my book.
Plenty of large projects need to go through and do a bit of a sweep of old issues every few years. If your projects have the discipline to never need that I congratulate you.
Clutter accumulates in any bug tracker.
Ideally they'd've been cleaning it out more regularly and these feature requests would've been marked "not currently on the roadmap" and closed much sooner.
But I don't think I've ever seen a team do a perfect job of that, and I'm probably worse at it than they are.
But "Don't sweat over any little issue, especially if they have gone multiple years without major complaints from a sizeable part of your user base" is.