Thanks
I am assuming there are a lot of already KYC bitcoiners on Coinbase.
Google cannot verify but says Coinbase holds 1 million. Add owners from whatever other kyc places (PayPal?) and it must be a lot.
I would imagine (I do not know I am just speculating) that once person A is known to have _had_ bitcoin then chain analysis is just one technical way to find coins.
Extortion would be more direct.
I think the boating accident phrase is funny but fragile and unlikely to endure under pressure.
It would seem there is a role for openly - even on chain - formalizing some process like the above whereby the owners demonstrably lose all access now with intend of slow recovery across time and space.
Extortion seems to be an impatient process.