Secondly, I know your comment was tongue-in-cheek, but that would actually be a very appropriate age cut-off for what strikes me as a remarkably elitist endeavor.
I'm at 730 days and I can support 1337 days, so long as I can read. I don't mind waiting just shy of two to be able to comment so long as the comment and post quality is exceptional.
TBH I'm fascinated to know how the community would differ from HN of 4 years ago, since all the older participants would be 4 years more experienced in life and hacking.
Or, as humans would say that, the cutoff could be the youngest of leaders.
However, that really doesn't answer the problem when you don't define what a leader is. If it's the highest amount of Karma past 7 days, then the youngest leader could even be a day old user. Please respond with solutions, not http wrappers.
If you go to the URL in the code, it defines what a leader is: the 100 people with the highest karma. By define get_leaders I meant write the scraper, not come up with the definition. Heh!