I do not think that Ethereum can scam. Too much is tied to it. The current price is certainly sad, but nothing to do. I also think that Constantinople will be able to influence Ethereum, but it is unlikely that its price will reach 2000$.
The penny is hard, not the island fire, there are now too many ICO projects they have sold ETH at low prices and so over time they have pulled down the ETH price. So I think the market will soon recover, and will probably fall by the end of this year. However, we need to wait patiently for recovery soon.