I remember reading that they employed this in AZ, too. Whole dorms at the universities that were shut down and empty due to COVID-19 had thousands of 'registered voters' with that address that turned in ballots and also ballots with addresses from commercial properties (not allowed), vacant parcels with no buildings, and 'false' addresses, that is, fake house numbers that were in between two actual existing addresses. When they went door to door in random checks, they found none of the neighbors with existing addresses knew the voter with the fake address.
I remember reading that they employed this in AZ, too. Whole dorms at the universities that were shut down and empty due to COVID-19 had thousands of 'registered voters' with that address that turned in ballots and also ballots with addresses from commercial properties (not allowed), vacant parcels with no buildings, and 'false' addresses, that is, fake house numbers that were in between two actual existing addresses. When they went door to door in random checks, they found none of the neighbors with existing addresses knew the voter with the fake address.