I do not know if this person didnt know what they did and switch the sending amount with the transaction fee or what happened. But I think their boss will be giving them a talk tomorrow morning on why their customer didnt get the payment they were suposse to. That is 2100 ethereum to the miners. As the comments say "They must be happy! " https://etherscan.io/tx/0x1f73b43dc9c48cc131a931fac7095de9e5eba0c5184ec0c5c5f1f32efa2a6bab
I believe that is just an accident, but still it is really a bad luck for someone who done it. I feel bad to that person, If that were me, perhaps i wouldn't able to sleep for a week, regretting what has happen.