you haven't done too badly on your articles. Rather than worry about curation, why don't you focus on doing more posts and building up your SP? I found that once I got over 1000SP then I was getting some curation reward. Until then, I was upvoting and commenting to support others more than worrying about a return.

It might be helpful if there was more guidance for new users to give them an idea of what to expect in regards to what level to shoot for to start seeing some curation return ...that sort of thing. Then they don't read the whitepaper and expect that it applies across the system the same.