It's not totally clear to me that these were private messages.
I know that the Canadian Border services agency will look things up that are posted publicly on the internet to verify stories. My guess is that the messages were public and the immigration staff just looked them up and happened to see them.
I know that the Canadian Border services agency will look things up that are posted publicly on the internet to verify stories. My guess is that the messages were public and the immigration staff just looked them up and happened to see them.