I'm Australian, so I see where you are coming from.
Living here in Canada, so close to the border with the USA, it's totally different. It's so close and easy, I drive to Alaska twice a month in the summer just to get good Thai food.
And from my own experience I can tell you this - he may have been denied entry to Aus or at least had a few issues, but I'll bet my bottom dollar he wouldn't have been belittled and made to feel like the scum of the earth for hours and hours.
I don't see what distance has to do with it. You're still crossing the border from one country to another regardless if you live 5 minutes or 5 hours from the border. To be honest, his experience is not so bad. In pre-EU Europe (and probably even now with some non-EU countries, but I can't say since I haven't tried) this kind of behaviour was often par for the course, and many times worse when trying to leave your home country for any reason during communism.
"3 to 4 months" according to the original article - I don't know what the usual thing to allow casual visits by Canadians to the US is, but I travel there from Australia fairly regularly for vacation and visiting family and friends under the visa waiver program, and I know I'm limited to 90 days - if I want to stay longer than that I need to get a visa.
Nah, that's totally not true. My Italian friend came over for a month or so to visit his girlfriend, was a bit evasive for some reason for some questions, and got some pretty bad treatment.
As someone else noted, it's a technique they use to try and unsettle you. Not that I necessarily agree with it, or like it, but at least there is a reason for it.
Living here in Canada, so close to the border with the USA, it's totally different. It's so close and easy, I drive to Alaska twice a month in the summer just to get good Thai food.
And from my own experience I can tell you this - he may have been denied entry to Aus or at least had a few issues, but I'll bet my bottom dollar he wouldn't have been belittled and made to feel like the scum of the earth for hours and hours.