Positive interest rates would be bad by the same logic
Bitcoin investors are not like this; they are holding onto the money in hopes the value goes up. The bitcoins they are holding are not being used for any financial transactions. Those bitcoins are essentially out of the economy while they are being held. This is bad for an economy, when the currency is more valuable as an investment than as a vehicle for economic transactions.
What is happening is that supply is reduced. Demand has presumably remained the same as it otherwise would have been, and as a result the price rises. This is great for people holding, and it encourages more saving - but the rising tide is lifting for all boats here.
For you who is just temporarily utilising the network, the fact that the price of Bitcoin might be ludicrously high (in your opinion) doesn't change the fact that you can utilise the advantages of a decentralised liberated money for your wealth movement at the same cost that it would have been if Bitcoin were at a low price.
Ideally it should be both.
> This means that the only real reason to spend Bitcoin or otherwise use it as a payment is for situations where that's the only option and right now, and for the foreseeable future, that means assorted illegal or at best borderline illegal products
There are plenty of legal products you can buy.
> Perhaps a blockchain-based cryptocurrency might in the future resolve these issues, but otherwise it's a doomed product that I wouldn't put a single penny (or watt of household electricity) into.
The only real issue you're pointing out is the finite supply (volatility will sort itself out in time) which for example Monero answers with a "tail emission" meaning there is an ever increasing amount of coins.
Bitcoin's biggest use case is as an emergency fund. People in Venezuela who bought at $1200 in 2013 were still doing comparatively well when the price was $200.
If oppressive capital controls crack down in a nation like Turkey, Bitcoin can protect you.
Bitcoin is excellent for protecting yourself during financial emergencies. High volatility is acceptable in these situations. Some money is better than no money at all.
So then here's the controversy of your statement - if bitcoin is a deflationary appreciation-only thing - then maybe it's not as volatile as you claim and is fit to be used in EFT scenarios? Or if it is in fact volatile then maybe it's not all that deflationary in that it's value isn't bound to be going up indefinitely?
Which is it? :)
As a side note - yes, the mechanics of coin mining do make bitcoin "technically" deflationary, but just like any other "thing of value" this doesn't guarantee it's value in the "real world" to be mapped to that deflation 1-to-1. There's a finite supply of gold or oil out there for example - their prices however are bound to fluctuate quite a bit...
I suppose gold does get used for something.
Gold is probably a better store of value than bitcoin. It's not a great one, mind you (the price is still too volatile). Its security can also be assured with physical protections that are easier for a layman to understand than bitcoin's electronic protections. Bitcoin has a small but nonzero chance of a total collapse in its value which gold will not face until widespread exploitation of asteroid-based mineral resources is commonplace.
Neither are effective units of account.