Anon,
Why do we need blockchain?
Personally I suspect that Bitcoin is toast, because people will enentually move their transactions to other blockchain based stuff that scales better. And at the moment there's clearly a demand for it.
However why blockchain? Why encumber all transactions with records of previous ones? The global payment transfer systems like SWIFT and VISA all work perfectly for moving money around the world. And are cheaper too. And don't waste vast amounts of electricity mining to do it.
Criminals struggle to use that system - and they'll always find a way to move money. Their transaction costs have always been huge anyway. But with Paypal, credit cards and bank transfers all being so cheap, I don't see a huge use case for crypto currency.
Blockchain looks like a much better system for keeping track of assets or software licenses.
The thing the internet could do with is some sort of system for micropayments - but I don't see crypto currency being any better at that than the current system. Certainly not if it's got transaction fees you have to measure in dollars.
As for your other points, the miners nearly control Bitcoin already. When it comes time to stop printing Bitcoin, if it survives that long, they'll vote to print more coins.
Biting the hand that feeds IT
