It's none of my business to keep sending me messages asking others to repay the loan.

Because you were the contact when this person took out the loan.

It's none of your business. Ignore it.

Generally speaking, people who borrow money and don't pay it back, and the contacts they fill in, are all people they know, but they are not very close and worried about being harassed.

In addition, online lending companies such as pat-pat loans borrow money according to the borrower's address book. Of course, when they don't pay back the money, people in the address book will be harassed.