Just my 2 SATs on the Quantum Debate. I think that after Quantum resistant addresses are approved, owners of Bitcoin are given a fair amount of time to move their Bitcoin to these new addresses. After which, then Old Addresses that have not moved are Time locked for 180 days after a transaction has been submitted to be mined. After which these time locked Bitcoin are only able to be sent to pre-approved Exchange Addresses for which the owners have been KYC’d properly. That would certainly slow down their release back into the community, and we would know what company or individuals were using Quantum computers to break the old code. Doing this may even give original owners of lost keys the ability to claim thru legal avenues that those were their coins.