Wonder which wallet they are using to make these kind of blunders. I have used majority of the desktop wallets that are available in this space and you cannot make these silly mistakes using them, unless you use some mobile wallet and you are under the influence of alcohol or something similar you might make these mistakes.
They must've been using their own software and probably didn't have any proper measures, i.e. detection of unusually high fee etc.
so paxos admits to failure thus making claim. yet f2pool has not made any 19btc payout to any entity at the 3day deadline
I think the 3 day deadline was just for the sender to get in touch with them. Verifying, assessing risks and refunding could take longer than that. Plus BTC is fungible (the Monero crowd would disagree), so they can send it from/to any address.
I still can't wrap my head around on how can F2pool make such bold gesture without consulting with the miners' first, they should be entitled to the share of that fee after all.
i wouldnt say bold(bald) i would say its a hairy situation for miners.
but miners are slaves to pools management. which is something miners should consider when thinking about which pool to be managed under. after all this may open up other people saying they want refunds too because they paid too much fee after the fact even on small satoshi amounts (though personally i think pools would ignore the small penny pinching refund claims and only do this gesture on obviously large mistakes)
but as for your "fungible" thing.. bitcoin is not fungible.
f2pool have transparent list of its addresses of its hot and cold wallet. and so far. even if they are not using the taint path of the coin fee spend error in new reward. they have not used any other coin in their f2pool hoard of rewards yet