They cannot enforce this in Canada. First, there are no spam laws in Canada, just privacy laws. Second, Canadian courts do not hand out crazy judgements like this. If this case was in a Canadian court there is no way the judgement would be more than $50-$100k and that is a stretch. He can challenge this judgement in Canada on so many levels. Facebook will never see any money from this spammer and he will never file for bankruptcy. He just better hope he doesn't need to travel to the US any time soon!