This is very unlikely to happen. A key part of writing a patent is making it so that you sue the people with the money and not your end-users. It's useless to have a patent that involves suing customers because that makes you look bad and is expensive to litigate. This is one of the interesting parts of drafting patents.

In Canada that is not correct at all. It costs over $4000 to initiate a complaint with the Canadian Internet Registry Authority. This is NOT a tactic available to the general public. It takes a long time and that large fee to push through a complaint. Clearly, Mr.Volpe has used his political status to subvert CIRA's regular domain dispute policy, something that ordinary folks can't do. It's even more galling that he did it to shutdown people critical of his politics (accepting large sum from pharma companies through questionable loopholes).