This is because the hunter ID consists of a total of 8 characters, including lowercase letters and numbers.
There is a script that generates a string that can be an ID and attempts to indiscriminately transfer acorns.
(Probably to dispose of acorns that had grown too large as a result of fraud)

It is very doubtful that those who received acorns through this will also be subject to punishment.
I would like to ask you to be careful about this so that the wrong punishment is not imposed.