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.
> It's not like you need karma updates every time you do a request to the API.
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.
http://news.ycombinator.com/item?id=789469