I cant believe that this person sent 0.1 Ether with 2,100 Ether transaction fee. I am pretty sure that this person is crying out right now and just shaking his / her head repeatedly. What will you do if this happens to you? How will you comfort your self at a time like this? 2,100 Ethereum for transaction fee really is a big amount and unfair on that person but a mistake was already made. I hope that he can contact the miner who processed that transaction for reimbursement which is I think possible. Look on the reference below.
https://etherscan.io/tx/0x1f73b43dc9c48cc131a931fac7095de9e5eba0c5184ec0c5c5f1f32efa2a6babI think this is a data sent by a robot. It is impossible for a normal human to send several transactions at the same time. The transaction volume of this address is very large.
This is just a single transaction,but the fee was entered at the wrong column which makes it completely hilaourious action.I know the user can't do anything now so people need to be aware of sending the their funds in the next time especially when the wallet ask gas fee from you.