I would assume an error on someone’s part. There’s no reason to overpay by that much.
Discussion
Someone's using mempool who doesn't understand how it works and for that he/she overpays the fees by x175%?
And no ones out there to help,because no one knows who he/she might be?
Where does the overpaid fees go then?
To the miners?
They set the fees in their wallet when they send the transaction. Depends which wallet they used. But yea, that’s on them to learn from this mistake. The fees go to whichever miner or mining pool mined that block.