As an alternative to libel suits, there is no downside to dueling.
Knowing their very lives are at stake, fewer powerful blowhards will try to bully their ideological enemies into silence.
(In Canada, the plaintiff’s damaged reputation and/or loss of income are assumed—he doesn’t even have to itemize it in court. To the contrary, as in England, libel defendants are presumed guilty until proven innocent. Even if one emerges triumphant, the long, costly, and emotionally draining process is the punishment.)
Under the dueling system, courts will be freed up.
The firearms and funeral businesses will boom.
And at the end of the day, the world will be down a few idiots.