Of course, this is not carelessness and negligence at all. Have to be blind or mentally retarded (I didn’t want to hurt anyone’s feelings or offend) for the sender to make such a mistake with the numbers. A person dealing with bitcoin is probably not one of them, if sender managed to figure out how it works.
For likers of alternative versions. It could also be a way to launder money! Bitcoin pull will later return most of the btc fees
clean and
fresh mined bitcoins. Why not, right?