Bummer. It might just be a case of someone crafting their transactions manually without realizing the total input value and factoring in the fact that anything that is unspent is considered as fees. At times, mining pools are willing to send the fees back if they're kind enough and the pool's miners are willing to cooperate. Hope that this is the case.

What??? Is this a joke or what.
This is one thing I like about electrum wallet, before it will allows proceed with your payment you received warning about the fee you are using, and if it's too low it will also warn you that your fee is extremely low that you can't be able to bump fee later.

But wait a moment, is this a kind of being haste to perform transaction or maybe the owner was drunk? Because I believe there are two things involved.

Is either;
Feeling drowsy
Or the person is drunk.

$800,000 gone just like that??

Wow! It really seems like this might be an accident or possibly a case of misconfigured software. Maybe the wallet they were using didn’t have a fee estimation feature as clear as it should be. That’s why it’s so important to double-check before pressing the submit or confirmation button. I wonder if this was a manual error or an automated process that went wrong? This is such a huge red flag for wallet UX improvements. Hopefully the miners involved can reach out and work on returning the funds, it has happened before in similar situations.

As was said previously, this may be the case, but the pool we are talking about usually does not do such things.
This said, I agree with you - I would blame it on the manual error and human nature either way. If it was done in auto mode, it's very strange there was no check for the funds needed for the fees and if they are too big or not.

You wouldn't be the only one thinking that. Some people on X speculate that too, but it would be a very dumb form of money laundering because everyone can see which mining pool it went to, which address sent it - assuming it wasn't a coinjoin - and if the pool eventually cashes out, which exchange the bitcoins end up going to.

None of that requires a ton of blockchain analysis.

Other than the fact that most good wallets have good UX as mentioned above, I also think that you can only do so much to improve UX. If someone ignores a notification or doesn't verify their inputs for whatever reason you can't really help them. I don't track cases like this actively but I'm sure this is the second time I read a case like this in the past year or so. The number is too small to conclude that most wallets need to improve their UX significantly. CMIIW.

Great to see that they are already aware of such a thing happening.
Hopefully, they would keep it up and get the situation resolved explained at best.

Ooouucchh!!

That's going to hurt a lot, haven't something like this happened before in the past where the pool refund the wallet? I am just saying I am not sure.

The miners will feel good for solving that block, I hope something can be done about this, this must be a big mistake 8Bitcoin is a lot of money, damn.

I feel sorry for this person.

they had an input(first utxo) of 0.14213292(amongst others but ill get to those)
they set a 0.1btc to go to a destination which i feel was there intended amount they wanted to spend
and change output of 0.04210876

meaning they only intended to have a fee of 2416sat(if spending just 1 utxo which seemed logical)

so it looks like they only wanted to spend one utxo due to the change being so similar to the first utxo remainder after a fair fee...

however it appears they* added in all other other utxos held by the wallet and thus by only dedicating 0.14210876 as output spend amounts, it treated all other utxo's as extra fee

*their badly used wallet

i feel they just wanted to use a $14k utxo to spend $10k, return $4k to the same address as the utxo.. and then only wanting to spend $2.25 in fee.. but their mistake cost them >$800,000

It is indeed an accident! Because the network fees is around 7 Sat/vB so the network would ask for such high fees. I am sure the user has made a typo error while entering the fees amount and clicked to send. This is really sad! If it was me, I would have had heart attack immediately. Because if I have 8 Bitcoins right now, I can take immediate retirement from my work life and can go back to pursuing my hobbies. I really feel bad for the person who has wasted so much money for nothing.