I was about to add a snarky "Easy answer: Read the HN F.A.Q. level comment but after a bit of looking around the answer isn't obvious (yet somehow I sort of knew it through being a HN user) and using the Search box didn't return anything useful so instead of snark I used a bit of google-fu & here's your answer. HTH.<p><a href="https://news.ycombinator.com/item?id=2456602" rel="nofollow">https://news.ycombinator.com/item?id=2456602</a><p><a href="https://news.ycombinator.com/item?id=3848762" rel="nofollow">https://news.ycombinator.com/item?id=3848762</a><p>TLDR; Green Accounts are for users who are under 5 days old. You can see all their submissions at - <a href="http://news.ycombinator.com/noobstories" rel="nofollow">http://news.ycombinator.com/noobstories</a><p>[Edit to add, Or perhaps it is 14 days as per <a href="https://news.ycombinator.com/item?id=3848820" rel="nofollow">https://news.ycombinator.com/item?id=3848820</a>]<p>Double Edit: Confirmed, 14 days (not 5). See <a href="https://github.com/minimaxir/hacker-news-undocumented" rel="nofollow">https://github.com/minimaxir/hacker-news-undocumented</a> for a full list