There was a page evaluating submissions from 2, 5 and more years ago, and they ended up deciding it had not declined that substantially. You can check out what

There was a page evaluating submissions from 2, 5 and more years ago, and they ended up deciding it had not declined that substantially. You can check out what Hacker News looks when they remove "new" accounts here: https://news.ycombinator.com/classic https://news.ycombinator.com/classic (created by pg to measure exactly that)