Sure, but it has been discussed before: https://news.ycombinator.com/item?id=6617497

Sure, so how often should content be recycled through HN?

The site has a ranking system for posts that handle this question.

Until people aren't interested in it any more.

If it's about the NSA or Bitcoin, everyday.

Totally.

However, in case said "things" are not from the current year, it is a habit on HN to include the date in the title — at least the year, like so:

I challenged hackers to investigate me and what they found out is chilling (2013)

Also, HN Search has just been drastically improved, so, when your "things" are not fresh from the morning, please use it to look for older submissions.

Current HN search is fucking terrible, especially on mobile.

Can you tell us what's terrible? We are always eager to improve it.

sorry, it was just meant as indicator that it was not new. I read it back then so if I had known it was not a new story I would not have clicked. That's all. :)