Yeah, that's true.

But then, I use steemit:

• as a kind of way to express myself on things I find interesting, and share them with others.

• as training wheels for writing, as simply writing in a notebook isn't really motivating enough for me to be able to do it relatively consistently.
  On steemit I can use the psychological "random-reward" factor to keep me motivated to post content, in the hopes of making content good enough that people will like it.

• Also, the post rewards I get on Steemit are pretty much destined either for investment in other cryptocurrencies without needing to go through the hassle of converting fiat currency to Bitcoin, or for investment into the platform itself, as I believe it's one of the few blockchain technologies that actually has a defined vision other than "be a currency".

So I'm not exactly aiming for it to become a primary source of income. it's just kind of, well, fun to share all my experiences with the world !