[muawiyah]

It's "the how", not "the what". They've always proxied ~ but not by going door to door inquiring about the neighbors (for most of a century).

Landlords, postal carriers, delivery guys, people out and about are fair game for making an inquiry ~ so are folks at the desk in hotels (of any kind).

[9YearLurker]

Actually they limit what postal carriers can be asked.