[cortic]

I would just like to estimate that >99% of threads older than 10 years have useful information and the potential for useful discussion.

I realize that where i am enthusiastic about older things, cars/bikes/tech/languages, you probably like new stuff. I hope you realize that most of the zombie revivalists agree with me. Most of the time we are looking for a new solution to an old problem, which is the definition of progress. Locking threads after 6 months (thanks Reddit) or berating someone who want to revive an old topic, cripples progress.

[walterbell]

One approach is to post an old, valuable thread (from Reddit or elsewhere) to HN, where annotated/appended conversation can continue indefinitely, especially if it reaches the HN front page for a one-time infusion of new readers and commenters.

What we need are search engines to offer an opt-in view or keyword which prioritizes this genre of valuable older evergrowing content. Perhaps Brave Goggles can be adapted to this purpose, using HN reposts and other signals of longevity.