Disagree with this proposal. Applying a rate-limit to P2PK utxos directly undermines the permissionless property of Bitcoin - ownership of private keys is the right to spend as the owner wishes. Instead of allowing laggards (we know there will be some!) to move coins just before a real, quantifiable threat, Hourglass V2 all but guarantees a quantum attacker has time to attack all remaining unspent P2PK utxos during the 32 years it would take to move all coins.

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