Ask HN: Is it time for a Greatest Hits?
The advantages would be that (a) new people might have their eyes drawn towards them, (b) it's easier to reference them when they become relevant in a thread, and (c) it makes a little more space for the new submissions.
Drawbacks would largely be related to visual clutter and curation costs, I think.
* Or call it Well-Known Works, or Classics, or what have you.