Up voted, and I am a fan for sure. But I do think the bubble will burst with the current business model. The money is coming from the exchanges - those buying Steem with either Bitcoin or Ether (mostly Poloniex). That volume is drying up and the price of Steem is going down. Something has got to give.
That said, there is still a lot of opportunity to fix the business model and bring in other sources of income. I think an Adsense style of bidding on ad space on the website could bring in a lot of money and fund the content producers, as well as increase the price of Steem and the interest in investing further. So.... as things are now, we will see the earnings drop until the business is modified. Why not do ads? This is how FB makes their money.
These are valid concerns. Please read this post where I try to address them.