It's just a quick thought that I wanted to get down. I see a lot of people chasing earnings without considering what the "earnings" really mean.
Steemit distributes the value of the social network among its participants. If your posts are driven by greed, you might be able to game it for some quick money. But chances are, you'll end up spamming posts that no one likes.
If you make content that people genuinely like, you're adding value to the network and you will be rewarded. Keep it simple and make good content :)