Best run that with some delays in there or you will definitely hit the velocity checks and you'll find your IP banned.
hn-api only makes one request when it gets stories or one request when you get a user's karma -- that doesn't seem like too much. I knew there was a velocity check on IPs (and that I was making an unofficial API), so I made it as light on HN as possible.
Obviously.
When a request is made to get stories from HN, no HackerNewsUser objects are created (and thus, no karma gets updated). hn-api will only update karma when you, the coder, make a HackerNewsUser object or call the HackerNewsUser.refreshKarma() method.
Like I said -- one request when it gets stories or one request when you get a user's karma.
Then you can specify some kind of time-out (say 3 days or so), after which it does get refreshed.
I'll look into it. Or, if some intrepid volunteer would like to contribute to the project, maybe they could.