[jere_jones]

I would agree. I've been a lurker on HN for a couple years and the recent PG post about creating wealth was new to me. It was a wonderful post, old as it may be, and much more useful to me (a developer) than multiple posts about another acquisition.

[dgallagher]

Can old links be re-posted after a certain period of time passes?

If so, maybe auto-add a prefix, "REPOST: Article Title", for any link that's re-submitted. That way people who've seen it before can ignore clicking on it, while those who haven't seen it will now have the opportunity to read it.

EDIT: BvS already posted a link to a Reddit post with the same idea.

[warp]

I would prefer if anyone posting a link would append the year of the original article, regardless of whether it's a repost or not.

[J3L2404]

Apart from the current year (which is implied).