Are we really all out of ideas? How about this: Any thoughts on the old wallets that just woke up today (or yesterday)? Lots of BTC suddenly moving out of old wallets... Reminds me of some puzzles we're all trying to solve... And I'll take any crazy, long-shot speculation/discussion about how those wallets may have been hacked...
NOT Satoshi's wallets... I'm talking about Satoshi-era wallets (meaning from back in the day). Most of those coins got consolidated from Legacy addresses to Bech32 addresses. Not sent to exchanges. I guess it’s a big deal to move your crypto to more secure wallets? Bunch of panic-sellers and FUD-spreaders overreacting online.

Are you still working on solving any of the remaining puzzles, or have you permanently gone fishing?