yes of course that would be a fairly simple way to solve... I'm just curious that I've not heard about any blockchains doing so, especially with all of the Quantum hype... cryptos love to ride hype trains...
As you said it yourself, it's still very much just hype. We are miles away from any practical solution that will put the current algorithms in danger.
But seriously, it would make more sense to implement quantum resistant cryptography before a quantum computer is created than after.
The implementations of quantum computers that we can see today are extremely delicate. They can barely function in perfect laboratory conditions. I think there is no need to rush ahead and deal with hypothetical problems that may never turn out to be actual problems.
I think this could be a flawed thought process. Computer science advances very rapidly. If there is a new way to do something, it's only a matter of time until that process goes exponential. Yes, quantum computers aren't a problem now, but I am certain that they are not as far off as you think. Once quantum computer development (i.e # of qubits) goes exponential, we would have an issue. This is something we need to prepare for well in advance; quantum computers could take us by storm.
I think quantum register ledger is developing something regarding this
And of course IOTA "claims" to be quantum proof...
IOTA is supposedly "quantum proof" but is it not "powerful computer" proof? My understanding is IOTA needs to do an incredibly small amount of proof of work for each transaction and because of that network security is dependent upon how many transactions there are. The proof of work stays static too and isn't variable. Isn't it only a matter of time until IOTA has some sort of 51% attack and the tangle can be unwound?