Have not used Instagram in a decade - sincerely curious why would a physical address be part of the leaked data? Are users actually required or voluntarily provide this information to Facecrook?
1. There's a map feature where users can assign their location to a photo that was taken. I suppose this could qualify as 'physical address'.
2. Businesses often have their physical addresses as part of their profile.
But anyway, I have Instagram and WhatsApp on my phone. They probably can also see my location (or the SSID of networks around me) and figure out where I live.
They will ask for a ID, then a video, then an ID, then a photo, then an ID, ...
After an undefined number of iterations, they made decide you are real enough, until ...
I would consider this as a favor.