A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, BA Gold, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,355
One time flying LH MUC-SFO, I had to go through a huge hassle because the address I had listed when I checked in was the in US, and I had a Canadian passport.
Had I said I lived in Canada, it would have been a lot less pain, but living in the US, they had to go enter all kinds of visa information, etc.
So if there was a connection on the ticket to somewhere other than Canada, this makes a lot of sense.