Asking for passport scans while insisting on remaining anonymous. Not shady at all

We want to be sure that we give money once a month to one person. In order to exclude the receipt of money by one person several times a month.
To reduce risks, the entire Earths Team is completely private.
Reduce risk of what? Being held responsible for your actions?
You can easily buy and sell passports on the dark net markets. Why should we trust you won't sell the ones you collect, or use them in other fraudulent ways?