[greyface-]

You're right that Satoshi's coins are at risk (but because they're using the older P2PK, not due to key reuse), and I agree that this would lead to some amount of chaos and transformative disruption.

> users would be required to hand over control of their wallet to actually manage the massive proliferation of addresses needed

BIP32 solved this in 2012, and is used by basically all self-custodial wallets these days. https://github.com/bitcoin/bips/blob/master/bip-0032.mediawi...

[Veserv]

Ah, I did not previously know that there were a plural number of Satoshi wallets. I previously read that Hal Finney was the first recipient of a Bitcoin and which came from Satoshi Nakamoto and assumed that there was just a single Satoshi wallet which would mean there is key reuse.