RE: ATTENTION: there is no income for steem, so the project value is going to zero. I invite all steem fans to tell me how steem earns money itself.

That's the deal with pretty much all the 'alt coins'. BTC does not really have anything to compete with them as far as functionality/features. The main thing it has is that it is the most widely adopted and well known coin. If another coin could overtake BCT on that, then there isn't a great reason why it couldn't also overtake BTC in price. It is obviously hopeful / wishful thinking, but on the other side to completely count out a coin like STEEM simply because it is not BTC seems like a mistake. Also, there are a lot of places to use STEEM beyond Steemit.com. It at least has more widespread adoption than itself. BTC did not start out with widespread adoption either.