I get your way of thinking in fact I would do the something with the crypto-currency that I am HODLing. After all I have not spend money on it (except for electricity fees) and I have witnessed its potential worst state. The only reason in my opinion that would lead to people leaving bitcoin would be that they are moving to something else that can massively increase their profit, with the belief that bitcoin can no longer benefit them as it did. And that can happen in the far away future however it is unlikely to happen anytime soon