Older submissions should have a (YYYY) in the headline to indicate they're old, but posting older things is a common practice on HN. It just means, "Hey, I ran

Older submissions should have a (YYYY) in the headline to indicate they're old, but posting older things is a common practice on HN. It just means, "Hey, I ran into this older thing that I think is still interesting, and I thought the community would too."