We are on Steemit. Why? Because Steemit provides us different experience. We write with high energy. If I talk about myself. I am lazzy one. I believe in passive income. I used to be a video reader. I don't read blogs but prefer to watch tutorials or video documentaries. Then How and Why I write few words for steemit. Because when I contribute something to community I get back same from community. That thing makes me motivate and I write as per my knowledge.
Yesterday, I thought to learn more about Steemit that's why I was searching something about steemit. And I found a video of CEO steemit. He was answering to the questions of audience. Someone asked him about steemit and rewards. He said,
Communities are economically one of the biggest markets in the world today.
Which cleared my confusion somehow. As we talk about other communities like Facebook Twitter Google etc. They are totally earning from their advertisements. But what's about members of communities. 0 or noting. Steemit is a change on the earth. It will create alot of jobs. Alot of entrepreneurs.
Everybody say Thanks to 
@thedaud