Ask HN: Who made @newsyc20?

I'm really liking https://twitter.com/newsyc20:

  Tweeting Hacker News stories as soon as 
  they reach 20 points. There's also 
  @newsyc50, @newsyc100, @newsyc150, @newsyc300

Does anyone know who made these? I haven't been able to find out with some light searching.

Is the code open source? I'd like a version that tweets new submissions with more than one point.

It has some really nice touches like finding the twitter handle in the profile of the submitter and including that in the tweet.